Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 31
Filtrar
1.
Cornea ; 42(1): 20-26, 2023 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-34935664

RESUMO

BACKGROUND/PURPOSE: The purpose of this study was to analyze Descemet stripping endothelial keratoplasty (DSEK) outcomes and develop a nomogram to compute the probability of 3- and 5-year DSEK graft survival based on risk factors. STUDY DESIGN/METHODS: The medical records of 794 DSEK procedures between January 1, 2008, and August 1, 2019, were retrospectively reviewed to identify 37 variables. We also evaluated for the presence of corneal graft failure, defined as irreversible and visually significant graft edema, haze, or scarring. Variables were assessed by multivariable Cox models, and a nomogram was created to predict the probability of 3- and 5-year graft survival. RESULTS: Graft failure occurred in 80 transplants (10.1%). The strongest risk factors for graft failure included graft detachment [hazard ratio (HR) = 4.46; P < 0.001], prior glaucoma surgery (HR = 3.14; P = 0.001), and glaucoma (HR = 2.23; P = 0.018). A preoperative diagnosis of Fuchs dystrophy was associated with a decreased risk of graft failure (HR = 0.47; P = 0.005) compared with secondary corneal edema. Our nomogram has a concordance index of 0.75 (95% confidence interval, 0.69 to 0.81), which indicates that it may predict the probability of graft survival at 3 and 5 years with reasonable accuracy. We also analyzed graft rejection, which occurred in 39 cases (4.9%). The single risk factor found to be significantly associated with graft rejection was prior glaucoma surgery (HR = 2.87; P = 0.008). CONCLUSIONS: Our nomogram may accurately predict DSEK graft survival after 3 and 5 years based on 4 variables. This nomogram will empower surgeons to share useful data with patients and improve collective clinical decision-making.


Assuntos
Ceratoplastia Endotelial com Remoção da Lâmina Limitante Posterior , Distrofia Endotelial de Fuchs , Glaucoma , Humanos , Sobrevivência de Enxerto , Ceratoplastia Endotelial com Remoção da Lâmina Limitante Posterior/métodos , Estudos Retrospectivos , Nomogramas , Acuidade Visual , Seguimentos , Distrofia Endotelial de Fuchs/cirurgia , Glaucoma/cirurgia , Rejeição de Enxerto/diagnóstico , Rejeição de Enxerto/etiologia
2.
Eur J Ophthalmol ; 31(6): 3494-3499, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34015954

RESUMO

PURPOSE: To evaluate the long term visual, refractive, and corneal tomographic outcomes of epithelium-off accelerated corneal collagen cross-linking (ACXL) in the management of pediatric keratoconus (KC). METHODS: This retrospective study included patients under 18 years old with progressive KC who underwent ACXL between 2012 and 2019 at Dicle University Hospital. Complete ophthalmic examination was performed including uncorrected distance visual acuity (UDVA), best spectacle-corrected distance visual acuity (CDVA), manifest refraction, and corneal tomography. Evaluations were performed preoperatively and at 6 months intervals postoperatively. RESULTS: Forty-nine eyes of 49 patients were included in the study. The mean age of patients at the time of ACXL was 14.2 ± 1.8 (range: 9.5-17.3) years. Mean follow up was 4.61 ± 1.90 (range: 2.0-8.1) years. The mean LogMAR UDVA improved from 0.94 ± 0.41 to 0.81 ± 0.43, 0.69 ± 0.41, and 0.67 ± 0.33 after 1, 3, and 5 years respectively (p = 0.001). The mean LogMAR CDVA improved from 0.58 ± 0.36 to 0.46 ± 0.31, 0.34 ± 0.23, and 0.39 ± 0.27 after 1, 3, and 5 years respectively (p = 0.015). The mean refractive cylinder improved significantly from 6.01 ± 2.07 diopters (D) to 5.46 ± 1.87, 5.38 ± 2.18, and 5.02 ± 2.31 D after 1, 3, and 5 years respectively (p = 0.005). As compared to preoperative values, steep keratometry and maximum keratometry were not significantly different (p = 0.805 and 0.448, respectively) following ACXL, while flat keratometry significantly improved after ACXL (p = 0.012). Although central corneal thicknesses decreased significantly (p = 0.029), the decrease in thinnest corneal thickness was not statistically significant (p = 0.205). CONCLUSION: Epithelium-off ACXL seems to be effective for halting KC progression with long term clinical benefits in pediatric patients.


Assuntos
Ceratocone , Fotoquimioterapia , Adolescente , Criança , Colágeno/uso terapêutico , Topografia da Córnea , Reagentes de Ligações Cruzadas/uso terapêutico , Humanos , Ceratocone/tratamento farmacológico , Fármacos Fotossensibilizantes/uso terapêutico , Estudos Retrospectivos , Riboflavina/uso terapêutico , Raios Ultravioleta
3.
Graefes Arch Clin Exp Ophthalmol ; 253(9): 1565-8, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25904298

RESUMO

PURPOSE: The objective of this study was to evaluate serum omentin, resistin and tumour necrosis factor-α (TNF-α) levels in Behcet disease (BD) patients with and without ocular involvement, as well as control subjects. METHODS: Omentin, resistin and TNF-α levels were assessed in the plasma of 51 BD patients and compared with those of 24 control subjects. RESULTS: The plasma resistin and TNF-α levels were significantly higher in the BD patients than in the control group (p = 0.028 and p = 0.011, respectively), whereas the plasma omentin level was significantly lower in BD patients than in the control group (p = 0.035). In the ocular BD, non-ocular BD and control groups, the omentin levels were 8.9 ± 4.65, 8.6 ± 3.61, and 12.4 ± 6.24 ng/mL; resistin levels were 0.29 ± 0.21, 0.24 ± 0.2 and 0.15 ± 0.45 ng/mL; and TNF-α levels were 25.45 ± 3.65, 24.03 ± 2.49 and 21.93 ± 4.86 ng/mL, respectively. Omentin/resistin and TNF-α/omentin ratios were more significant parameters in the demonstration of the differences in the groups; the former was lower and the latter was higher in the patient groups (p = 0.001 and p = 0.002, respectively). CONCLUSIONS: We demonstrated that the plasma omentin level and omentin/resistin ratio were decreased, whereas the resistin and TNF-α levels and TNF-α/omentin ratio were increased in BD patients. These ratios may be used in the presentation of deviation in the inflammatory and anti-inflammatory balance in BD.


Assuntos
Síndrome de Behçet/sangue , Biomarcadores/sangue , Citocinas/sangue , Lectinas/sangue , Resistina/sangue , Fator de Necrose Tumoral alfa/sangue , Uveíte/sangue , Adulto , Síndrome de Behçet/diagnóstico , Ensaio de Imunoadsorção Enzimática , Feminino , Proteínas Ligadas por GPI/sangue , Humanos , Masculino , Uveíte/diagnóstico
4.
Eye Contact Lens ; 41(6): 349-53, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25794329

RESUMO

OBJECTIVE: To evaluate the changes in psychological distress level and quality of life (QoL) scores of keratoconus (KC) patients 1 year after corneal collagen cross-linking (CXL). METHODS: Observational cross-sectional study. Thirty-three, consecutive progressive KC patients who received CXL treatment were enrolled in the study. All patients were evaluated before and 1 year after CXL ophthalmologically and psychologically. Main outcome measures were the visual, refractive, and topographic changes and the Beck Depression Inventory, State-Trait Anxiety Inventory (STAI), Short Form-36 (SF-36), and The National Eye Institute Visual Function Questionnaire (NEI-VFQ-25). RESULTS: There were significant improvements in the keratometric readings at flat axis, steep axis, the mean keratometric reading, the corneal astigmatism (Kast), and the maximum keratometric reading. State-Trait Anxiety Inventory-II scores, QoL dimensions, such as physical role difficulty, general health, mental health, ocular pain, near activities, distance activities, peripheral vision, and mental health scores, and the composite score of NEI-VFQ-25, were higher after surgery. There was a positive correlation between the changes observed in Kast and mental health; a negative correlation between the changes in Kast and STAI-II, and a negative correlation between the changes in mental health and STAI-II. Change in STAI-II has significantly predicted the improvement observed in general health. CONCLUSIONS: Our results suggested lower trait anxiety and better vision-related and health-related QoL in KC patients 1 year after successful CXL treatment. Better QoL in these patients seems to be related not only with the visual and refractive results but also improvement observed in trait anxiety.


Assuntos
Reagentes de Ligações Cruzadas/uso terapêutico , Ceratocone/tratamento farmacológico , Ceratocone/psicologia , Qualidade de Vida , Estresse Psicológico/etiologia , Adolescente , Adulto , Ansiedade , Colágeno/metabolismo , Estudos Transversais , Depressão/etiologia , Feminino , Humanos , Ceratocone/fisiopatologia , Masculino , Refração Ocular/fisiologia , Inquéritos e Questionários , Acuidade Visual/fisiologia , Adulto Jovem
5.
Ulus Travma Acil Cerrahi Derg ; 20(4): 253-7, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25135019

RESUMO

BACKGROUND: The purpose of this study was to evaluate the etiologic and prognostic factors of open eye injuries in geriatric patients in the Southeastern region of Anatolia. METHODS: Forty-five geriatric patients who underwent surgery for an open eye injury in our clinic between the years of 2008 and 2012 were evaluated retrospectively. Age, gender, cause and the mechanism of the trauma, visual acuity (VA), and the time between the trauma and the surgery were obtained from files and evaluated. RESULTS: The mean age of the patients was 70.4±8.2 (65-90) years. Thirty-four of the cases were male and 11 were female. The most frequent mechanism of trauma was a wood strike, while the second most common one was injury with a knife. Corneoscleral penetration was the most frequently observed trauma. The mean VA of the patients was 2.26±0.65 at admission, and was 1.53±0.99 logarithm of the minimum angle of resolution at the final evaluation. The most frequent complications of trauma were iris prolapse and hyphema. There was a significant correlation between the first and final VA. CONCLUSION: Penetrating ocular injuries are seen less frequently among geriatric patients, and their prognosis may be worse due to less-efficient wound site healing and differences in scleral rigidity. The most important factor affecting the final VA measurement was the VA of the patient at admission.


Assuntos
Ferimentos Oculares Penetrantes/diagnóstico , Ferimentos Oculares Penetrantes/epidemiologia , Ferimentos Oculares Penetrantes/etiologia , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Prognóstico , Estudos Retrospectivos , Tempo para o Tratamento , Turquia/epidemiologia
6.
Arq. bras. oftalmol ; 77(4): 219-221, Jul-Aug/2014. tab
Artigo em Inglês | LILACS | ID: lil-728654

RESUMO

Purpose: In this study, we examined the spectral domain optical coherence tomography (OCT) findings of ocular Behçet's disease (OB) in patients with inactive uveitis. Specifically, we analyzed the inner and outer segment junction (IS/OS line) integrity and the effect of disturbed IS/OS line integrity on visual acuity. Methods: Patient files and OCT images of OB patients who had been followed-up between January and June of the year 2013 at the Dicle University Eye Clinic were evaluated retrospectively. Sixty-six eyes of 39 patients were included the study. Results: OCT examination of the patients with inactive OB revealed that approximately 25% of the patients had disturbed IS/OS and external limiting membrane (EML) line integrity, lower visual acuity (VA), and lower macular thickness than others. Linear regression analysis revealed that macular thickness was not an independent variable for VA. In contrast, the IS/OS line integrity was an independent variable for VA in inactive OB patients. Conclusion: In this study, we showed that the IS/OS line integrity was an independent variable for VA in inactive OB patients. Further prospective studies are needed to evaluate the integrity of the IS/OS line in OB patients. .


Objetivo: Neste estudo, examinamos os achados da tomografia de coerência óptica (OCT) de domínio espectral na doença de Behçet ocular (OB) em pacientes com uveíte inativa. Especificamente, analisamos a integridade da junção dos segmentos interno e externo (linha IS/OS) e o efeito da alteração da integridade da linha IS/OS na acuidade visual. Métodos: Avaliamos retrospectivamente os prontuários e as imagens de OCT dos pacientes com OB examinados entre janeiro e junho de 2013 na Dicle University Eye Clinic. Sessenta e seis olhos de 39 pacientes foram incluídos no estudo. Resultados: Análise das imagens de OCT dos pacientes com OB inativa revelou que aproximadamente 25% dos pacientes tinham alterações da integridade da linha IS/OS e da membrana limitante externa (ELM), e apresentavam acuidade visual (VA) e espessura macular menor do que os outros. A análise de regressão linear revelou que a espessura macular não é uma variável independente para VA. Por outro lado, a integridade da linha IS/OS foi uma variável independente para VA em pacientes com OB inativa. Conclusão: Neste estudo, nós mostramos que a integridade da linha IS/OS foi uma variável independente para a VA em pacientes com OB inativa. Precisamos de mais estudos prospectivos para avaliar a integridade da linha IS/OS em pacientes com OB. .


Assuntos
Humanos , Síndrome de Behçet/patologia , Segmento Interno das Células Fotorreceptoras da Retina/patologia , Segmento Externo das Células Fotorreceptoras da Retina/patologia , Tomografia de Coerência Óptica , Acuidade Visual/fisiologia , Síndrome de Behçet/fisiopatologia , Estudos Retrospectivos
7.
Arq. bras. oftalmol ; 77(2): 95-98, Mar-Apr/2014. tab
Artigo em Inglês | LILACS | ID: lil-716257

RESUMO

Purpose: To measure and investigate visual functioning and health-related quality of life (QOL) in patients after ocular penetrating injuries (OPI). Methods: Fifty-four adult patients with OPI and 26 healthy control subjects were enrolled in the study. The National Eye Institute Visual Functioning Questionnaire (NEI VFQ-25) and the 36-Item Short Form Health Survey (SF 36) were administered. Sociodemographic and clinical data also were collected. The primary outcome measures were comparisons and multivariate analysis among groups for the NEI VFQ-25 and SF 36 subscale scores. Results: All NEI VFQ-25 scores, except general health, were significantly lower in the OPI group than those in the control group. All SF 36 scores were significantly lower in the OPI group than in the control group. The NEI VFQ-25 subscale item scores showed no significant differences with respect to age, educational level, or visual acuity in the injured eye. The SF 36 subscale item scores revealed no significant differences according to gender or educational level. Conclusions: Patients with OPI have increased psychological symptoms and lower levels of QOL than healthy control subjects have. Deteriorations in QOL should be kept in mind when managing patients with OPI. .


Objetivo: Medir e investigar a função visual e a qualidade de vida relacionada à saúde (QOL) em pacientes após ferimentos ocular penetrantes (OPI). Método: Cinquenta e quatro pacientes adultos com OPI e 26 indivíduos saudáveis (controles) foram incluídos no estudo. O questionário de função visual do National Eye Institute (NEI VFQ-25) e a avaliação curta de 36 itens (Short Form Health Survey - SF 36) foram administrados. Dados sociais, demográficos e clínicos também foram coletados. As comparações e análise multivariada entre os grupos para as subescalas do NEI VFQ-25 e do SF 36 foram consideradas como resultados primários. Resultados: Todos os índices do NEI VFQ-25, exceto saúde geral, foram significativamente menores no grupo OPI do que aqueles no grupo controle. Todos os índices do SF 36 foram significativamente menores no grupo OPI do que no grupo controle. Os índices das subescalas do NEI VFQ-25 não apresentaram diferenças significativas em relação à idade, escolaridade, ou acuidade visual no olho ferido. Os índices das subescalas do SF 36 não revelaram diferenças significativas de acordo com o nível de escolaridade ou sexo. Conclusões: Pacientes com OPI apresentaram sintomas psicológicos aumentados e níveis mais baixos de qualidade de vida que os indivíduos saudáveis. Deteriorações na qualidade de vida devem ser consideradas ao gerenciar pacientes com OPI. .


Assuntos
Adulto , Humanos , Ferimentos Oculares Penetrantes/psicologia , Qualidade de Vida/psicologia , Estudos de Casos e Controles , Inquéritos e Questionários , Acuidade Visual
8.
Cutan Ocul Toxicol ; 33(3): 218-22, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24147938

RESUMO

PURPOSE: To compare outcomes of accelerated and conventional corneal cross-linking (CXL) for progressive keratoconus (KC). MATERIALS AND METHODS: Patients were divided into two groups as the accelerated CXL group and the conventional CXL group. The uncorrected distant visual acuity (UDVA), corrected distant visual acuity (CDVA), refraction and keratometric values were measured preoperatively and postoperatively. The data of the two groups were compared statistically. RESULTS: The mean UDVA and CDVA were better at the six month postoperative when compared with preoperative values in two groups. While change in UDVA and CDVA was statistically significant in the accelerated CXL group (p = 0.035 and p = 0.047, respectively), it did not reach statistical significance in the conventional CXL group (p = 0.184 and p = 0.113, respectively). The decrease in the mean corneal power (Km) and maximum keratometric value (Kmax) were statistically significant in both groups (p = 0.012 and 0.046, respectively in the accelerated CXL group, p = 0.012 and 0.041, respectively, in the conventional CXL group). There was no statistically significant difference in visual and refractive results between the two groups (p > 0.05). CONCLUSIONS: Refractive and visual results of the accelerated CXL method and the conventional CXL method for the treatment of KC in short time period were similar. The accelerated CXL method faster and provide high throughput of the patients.


Assuntos
Reagentes de Ligações Cruzadas/uso terapêutico , Ceratocone/tratamento farmacológico , Fotoquimioterapia , Radiossensibilizantes/uso terapêutico , Riboflavina/uso terapêutico , Raios Ultravioleta , Adolescente , Adulto , Colágeno/metabolismo , Córnea/efeitos dos fármacos , Córnea/metabolismo , Feminino , Humanos , Ceratocone/metabolismo , Ceratocone/fisiopatologia , Masculino , Refração Ocular , Acuidade Visual , Adulto Jovem
9.
Cutan Ocul Toxicol ; 33(1): 28-31, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23692299

RESUMO

UNLABELLED: Abstract Objective: To monitor the changes in corneal thickness during the corneal collagen cross-linking procedure by using isotonic riboflavin solution without dextran in ectatic corneal diseases. MATERIALS AND METHODS: The corneal thickness measurements were obtained before epithelial removal, after epithelial removal, following the instillation of isotonic riboflavin solution without dextran for 30 min, and after 10 min of ultraviolet A irradiation. RESULTS: Eleven eyes of eleven patients with progressive keratoconus (n = 10) and iatrogenic corneal ectasia (n = 1) were included in this study. The mean thinnest pachymetric measurements were 391.82 ± 30.34 µm (320-434 µm) after de-epithelialization of the cornea, 435 ± 21.17 µm (402-472 µm) following 30 min instillation of isotonic riboflavin solution without dextran and 431.73 ± 20.64 µm (387-461 µm) following 10 min of ultraviolet A irradiation to the cornea. CONCLUSION: Performing corneal cross-linking procedure with isotonic riboflavin solution without dextran might not induce corneal thinning but a little swelling throughout the procedure.


Assuntos
Colágeno/metabolismo , Doenças da Córnea/cirurgia , Reagentes de Ligações Cruzadas/uso terapêutico , Dilatação Patológica/cirurgia , Fármacos Fotossensibilizantes/uso terapêutico , Riboflavina/uso terapêutico , Doenças da Córnea/tratamento farmacológico , Substância Própria/efeitos dos fármacos , Substância Própria/metabolismo , Substância Própria/efeitos da radiação , Topografia da Córnea , Dextranos/química , Dilatação Patológica/tratamento farmacológico , Epitélio Corneano/efeitos dos fármacos , Epitélio Corneano/metabolismo , Epitélio Corneano/efeitos da radiação , Humanos , Cuidados Intraoperatórios , Soluções Isotônicas , Ceratocone/tratamento farmacológico , Ceratocone/cirurgia , Fotoquimioterapia , Raios Ultravioleta
10.
Cutan Ocul Toxicol ; 33(2): 115-9, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23841829

RESUMO

BACKGROUND: The aim of this study was to evaluate the differences, in terms of visual outcome and treatment needs, between smokers and non-smokers central serous chorioretinopathy (CSCR) patients. METHODS: The files of 252 patients diagnosed with CSCR who had presented to the Retina Unit of the Ophthalmology Clinic at Dicle University Medical School in Turkey were retrospectively evaluated. Eighty-four smokers, with a known history of smoking of at least one pack-year, and 133 non-smokers were included, whereas 35 patients with additional pathologies were excluded from the study. RESULTS: Of the patients, 192 (88.5%) were male and 25 (11.5%) were female. The mean patient age was 38.8 ± 8.1 years (range: 20-68 years). Visual acuity (VA) of the smoker and non-smoker groups was measured as 0.45 ± 0.35 and 0.24 ± 0.28 logarithm of the minimum angle of resolution (logMar), respectively, at the first visit; 0.19 ± 0.29 and 0.06 ± 0.14 logMar at the sixth month; and 0.07 ± 0.14 and 0.02 ± 0.05 logMar at the ninth month. VA measurements at presentation and during all examinations (1th, 6th and 9th month) were significantly different for the two groups. VA was lower in the smoker group. In 27 patients (12.4%), an additional treatment modality was needed. Of the 27 patients, only 8 (6%) were non-smokers, whereas 19 (22.6%) were smokers. There was no difference between groups in the recurrence rate during follow-up (p = 0.907); 14 (16.7%) smokers and 8 (19.0%) non-smokers experienced a recurrence. CONCLUSION: This study has shown that patients selected and who are current smokers have poorer vision and need longer treatment.


Assuntos
Coriorretinopatia Serosa Central/fisiopatologia , Fumar/fisiopatologia , Acuidade Visual , Adulto , Idoso , Inibidores da Angiogênese/uso terapêutico , Anticorpos Monoclonais Humanizados/uso terapêutico , Bevacizumab , Coriorretinopatia Serosa Central/diagnóstico , Coriorretinopatia Serosa Central/tratamento farmacológico , Coriorretinopatia Serosa Central/cirurgia , Feminino , Humanos , Fotocoagulação a Laser , Masculino , Pessoa de Meia-Idade , Fotoquimioterapia , Tomografia de Coerência Óptica , Adulto Jovem
11.
Cutan Ocul Toxicol ; 33(2): 168-71, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23879803

RESUMO

PURPOSE: To evaluate the efficacy of accelerated corneal cross-linking (CXL) procedure for progressive keratoconus. MATERIALS AND METHODS: Twenty-three eyes of 23 patients undergone accelerated CXL procedure were evaluated preoperatively and postoperatively at 1st, 3rd and 6th month for uncorrected distant visual acuity (UDVA), best corrected distant visual acuity (CDVA), spherical error, cylindrical error, spherical equivalent (SE), keratometric values and thinnest corneal thickness (TCT) values with corneal topography by Scheimpflug camera and endothelial cell density (ECD). RESULTS: The mean UDVA was improved from 0.97 ± 0.41 logarithm of minimal angle of resolution (logMAR) to 0.76 ± 0.45 logMAR at the 6th month after CXL (p = 0.332). The mean CDVA was improved from 0.49 ± 0.30 logMAR to 0.34 ± 0.22 logMAR at the 6th month after CXL (p = 0.026). The mean sphere was decreased from -4.47 ± 4.1 diopter (D) to -3.79 ± 3.86 D and the mean cylinder was decreased from -5.60 ± 2.2 D to -4.55 ± 1.98 D and the mean SE was decreased from -7.22 ± 4.48 D to -6.36 ± 4.34 D at the 6th month after CXL (p = 0.128, p = 0.002 and p = 0.045, respectively). Flat keratometry, steep keratometry, mean keratometry and maximum keratometry were significantly reduced at the 6th month after CXL (p = 0.025, p < 0.001, p = 0.004 and p = 0.03, respectively). TCT and ECD were not changed significantly the 6th month after CXL (p = 0.135 and p = 0.082, respectively). CONCLUSION: Accelerated CXL procedure was effective to stabilize progression of keratoconus with significant reduction in topographic keratometric values and significant increase in CDVA in 6 months.


Assuntos
Ceratocone/tratamento farmacológico , Fotoquimioterapia , Fármacos Fotossensibilizantes/uso terapêutico , Riboflavina/uso terapêutico , Raios Ultravioleta , Adolescente , Adulto , Criança , Colágeno/metabolismo , Córnea/efeitos dos fármacos , Córnea/metabolismo , Topografia da Córnea , Feminino , Humanos , Ceratocone/cirurgia , Masculino , Acuidade Visual/efeitos dos fármacos , Adulto Jovem
12.
Cutan Ocul Toxicol ; 33(2): 127-31, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23859485

RESUMO

PURPOSE: To evaluate the corneal endothelial changes following accelerated collagen cross-linking (CXL) for the treatment of progressive keratoconus. METHODS: Thirty-six consecutive progressive keratoconus patients who received accelerated CXL treatment were enrolled in the study. Following de-epithelization, isoosmolar 0.1% riboflavin solution without dextran was instilled every 3 min throughout the 30 min of soaking time before the 5 min of 18 mW/cm(2) UVA irradiation and every 2 min during the UVA irradiation. Corneal specular microscopy was performed on both treated and fellow eyes of each patient preoperatively, in the first week, and in the first, third and sixth month postoperatively. RESULTS: There were significant differences in endothelial cell density (ECD), percentages of hexagonality (6A) and coefficient of variation of endothelial cell area (CV) in the first week and first month postoperatively in the treated eyes when compared to their preoperative values and also to the first week and first month ECD, 6A and CV values of the non-operative eyes. ECD returned to the preoperative values at sixth month whereas 6A and CV returned to the preoperative values at third month. CONCLUSION: Our results suggested that there may be transient changes in human corneal endothelium following accelerated UVA/riboflavin CXL. Resolution of these changes during the follow-up may indicate a safe recovery. However, the treatment guidelines for accelerated CXL including irradiance level and soaking time should be clearly established to minimize the toxic effects of the treatment.


Assuntos
Endotélio Corneano/patologia , Ceratocone/patologia , Fármacos Fotossensibilizantes/efeitos adversos , Riboflavina/efeitos adversos , Adolescente , Adulto , Criança , Colágeno/metabolismo , Feminino , Humanos , Ceratocone/tratamento farmacológico , Ceratocone/metabolismo , Masculino , Fotoquimioterapia , Fármacos Fotossensibilizantes/uso terapêutico , Riboflavina/uso terapêutico , Raios Ultravioleta , Adulto Jovem
13.
Cutan Ocul Toxicol ; 33(2): 138-44, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23859535

RESUMO

PURPOSE: To compare the effectiveness of the topical and subconjunctival (SC) ranibizumab treatment in experimental corneal neovascularization (NV) model in rats. METHODS: A model of NV was generated by cauterizing right corneas of 30 Sprague-Dawley rats with silver nitrate. The animals were separated into five groups randomly. first group (control group) received topical artificial tear drops two times daily while second and third groups received topical ranibizumab four times daily at concentrations of 5 mg/mL and 10 mg/mL, respectively. Forth and fifth groups were given 0.5 mg/0.05 mL and 1 mg/0.1 mL of SC ranibizumab in the 1st, 3rd and 7th days. The measurements (percentage of NV area and number of vessels) from digital photographs of the corneas were determined and analyzed using analysis software (ImageJ, v1.38). The animals were sacrificed on the 10th day and their corneas were subjected to hemotoxylin-eosin histopathological staining and antisera against CD34 and von-Willebrand factor to evaluate microvascular structures immunohistochemically. RESULTS: The percentage of the corneal NV area and number of vessels in all treatment groups was found to be significantly lower than the control group. There was no significant difference in relation to the percentage of NV area and number of vessels in the treatment groups. Score of the corneal edema was determined to be significantly less in the groups that undertook treatment. Number of vessels and inflammatory cells were significantly lower in the histological and immunohistochemical sections in the treated groups than in the control group. In all treatment groups, fibroblast intensity was significantly lower than the control group (p = 0.005). CONCLUSION: Topical or SC administration of ranibizumab seems to be a promising and effective medication in the treatment of corneal NV. Further research is recommended to assess the potential side effects and effective dose.


Assuntos
Inibidores da Angiogênese/administração & dosagem , Anticorpos Monoclonais Humanizados/administração & dosagem , Neovascularização da Córnea/tratamento farmacológico , Administração Tópica , Animais , Antígenos CD34/metabolismo , Córnea/efeitos dos fármacos , Córnea/metabolismo , Neovascularização da Córnea/metabolismo , Masculino , Ranibizumab , Ratos Sprague-Dawley , Fator de von Willebrand/metabolismo
14.
Semin Ophthalmol ; 29(1): 32-5, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24168178

RESUMO

A 12-year-old female patient was admitted to our clinic complaining about low vision. Bilateral optic disc edema, macular star, and preretinal hemorrhages were found in fundoscopic examination. In fundus fluorescein angiography, massive leakage in the late phase was seen in the optic nerve head and macular area. These findings were compatible with high-grade hypertensive retinopathy. The patient consulted with pediatrics and a diagnosis of vesicourethral reflux and malignant hypertension was made.


Assuntos
Hipertensão Maligna/diagnóstico , Papiledema/diagnóstico , Hemorragia Retiniana/diagnóstico , Anti-Hipertensivos/uso terapêutico , Pressão Sanguínea/fisiologia , Criança , Doxazossina/uso terapêutico , Quimioterapia Combinada , Enalapril/uso terapêutico , Feminino , Angiofluoresceinografia , Humanos , Hipertensão Maligna/tratamento farmacológico , Pressão Intraocular/fisiologia , Nifedipino/uso terapêutico , Papiledema/tratamento farmacológico , Hemorragia Retiniana/tratamento farmacológico , Tomografia de Coerência Óptica , Tonometria Ocular , Vasodilatadores/uso terapêutico , Refluxo Vesicoureteral/diagnóstico , Refluxo Vesicoureteral/cirurgia , Acuidade Visual/fisiologia
15.
ScientificWorldJournal ; 2013: 215912, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24250258

RESUMO

OBJECTIVE: To determine whether mean platelet volume (MPV) is an indicator of disease severity in ocular Behçet's Disease (BD). MATERIALS AND METHODS: The study population was 30 newly diagnosed ocular BD patients who presented with active uveitis. These patients had no past history of smoking, drug use, or systemic diseases including diabetes mellitus, hypertension, cardiovascular disease, and renal disease. A control group consisting of 34 healthy individuals was included for comparison. MPV measurements were performed serially upon presentation with active uveitis and at one and three month thereafter in BD group whereas only at presentation in the controls. RESULTS: Upon presentation with active uveitis, the mean MPV levels were 7.88 ± 1.14 femtoliters (fL) for BD group. During the posttreatment follow-up period at first and third months, BD patients demonstrated a mean MPV level of 7.71 ± 1.12 fL and 7.65 ± 1.04 fL, respectively. The mean MPV value of control group, was 8.39 ± 0.66 fL at presentation. Fluctuations in MPV values were not significant in the BD group, while there was a significant difference between the initial measurements of the BD and control groups. CONCLUSION: MPV measurement in ocular BD is not a predictive laboratory test to determine the clinical improvement in early stages following classical immunosuppressive treatment.


Assuntos
Síndrome de Behçet/sangue , Volume Plaquetário Médio , Uveíte/sangue , Adulto , Síndrome de Behçet/complicações , Síndrome de Behçet/diagnóstico , Feminino , Humanos , Masculino , Valor Preditivo dos Testes , Uveíte/diagnóstico , Uveíte/etiologia
16.
Arq Bras Oftalmol ; 76(4): 209-11, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24061828

RESUMO

PURPOSE: Pigment epithelial detachment (PED) may be seen in all stages of age-related macular degeneration (ARMD) and may lead to poor prognosis. In this study, we retrospectively examined the effect of anti-VEGF treatments in ARMD patients with vascularized PED. METHODS: Medical records of 15 patients with PED secondary to ARMD were reviewed retrospectively. The diagnosis of PED was made with fundoscopy, fundus fluorescein angiography and optical coherence tomography. Patients were treated with intravitreal ranibizumab or/and bevacizumab and followed up for a minimum of one year. PED height and best corrected visual acuity (BCVA) was obtained before the first intravitreal anti-VEGF injection and again at the 1st, 3rd, 6th and 12th month after the injection. RESULTS: The mean baseline BCVA was 0.71 ± 0.48 logarithm of the minimal angle of resolution (logMAR) unit and the mean baseline PED height was 361 ± 153 µ. The mean injection count per eye was 3.9 ± 2.9. There was a significant reduce in mean PED height (247 ± 177 µ) also in 2 eyes PED completely resolved at the end of the follow up period. The mean BCVA at 12th month (0,69 ± 0,37) were not different from the baseline record. CONCLUSIONS: This retrospective case series showed that intravitreal anti-VEGF therapy preserved vision and reduced PED height in PED patients in a one-year follow-up period.


Assuntos
Anticorpos Monoclonais Humanizados/uso terapêutico , Degeneração Macular/complicações , Descolamento Retiniano/tratamento farmacológico , Epitélio Pigmentado da Retina , Fator A de Crescimento do Endotélio Vascular/antagonistas & inibidores , Idoso , Bevacizumab , Feminino , Seguimentos , Humanos , Injeções Intravítreas , Masculino , Pessoa de Meia-Idade , Ranibizumab , Descolamento Retiniano/etiologia , Estudos Retrospectivos , Fatores de Tempo , Resultado do Tratamento , Acuidade Visual
17.
Arq. bras. oftalmol ; 76(4): 209-211, jul.-ago. 2013. ilus, graf, tab
Artigo em Inglês | LILACS | ID: lil-686553

RESUMO

PURPOSE:Pigment epithelial detachment (PED) may be seen in all stages of age-related macular degeneration (ARMD) and may lead to poor prognosis. In this study, we retrospectively examined the effect of anti-VEGF treatments in ARMD patients with vascularized PED. METHODS:Medical records of 15 patients with PED secondary to ARMD were reviewed retrospectively. The diagnosis of PED was made with fundoscopy, fundus fluorescein angiography and optical coherence tomography. Patients were treated with intravitreal ranibizumab or/and bevacizumab and followed up for a minimum of one year. PED height and best corrected visual acuity (BCVA) was obtained before the first intravitreal anti-VEGF injection and again at the 1st, 3rd, 6th and 12th month after the injection. RESULTS: The mean baseline BCVA was 0.71 ± 0.48 logarithm of the minimal angle of resolution (logMAR) unit and the mean baseline PED height was 361 ± 153 µ. The mean injection count per eye was 3.9 ± 2.9. There was a significant reduce in mean PED height (247 ± 177 µ) also in 2 eyes PED completely resolved at the end of the follow up period. The mean BCVA at 12th month (0,69 ± 0,37) were not different from the baseline record. CONCLUSIONS: This retrospective case series showed that intravitreal anti-VEGF therapy preserved vision and reduced PED height in PED patients in a one-year follow-up period.


OBJETIVO: O descolamento do epitélio pigmentado (DEP) pode ser observado em todas as fases da degeneração macular relacionada com a idade (ARMD) e pode propiciar um mau prognóstico. Neste estudo, analisamos retrospectivamente o efeito dos tratamentos anti-VEGF em pacientes com DMRI e DEP vascularizado. MÉTODOS: Foram revisados ​​prontuários de 15 pacientes com DEP secundário à DMRI. O diagnóstico do DEP foi feito por meio de fundoscopia, angiofluoresceínografia e tomografia de coerência óptica. Os pacientes foram tratados com injeção intravítrea de ranibizumab e/ou bevacizumab e acompanhados por um período mínimo de um ano. A altura do DEP e a melhor acuidade visual corrigida (AVCC) foi obtida antes e no primeiro, terceiro, sexto e 12º mês após a primeira injeção. RESULTADOS: A média inicial da AVCC foi de 0,71 ± 0,48 (logaritmo do ângulo mínimo de resolução unidade - logMAR) e a média inicial da altura do DEP foi 361 ± 153 µ. A contagem média de injeções por olho foi de 3,9 ± 2,9. Houve uma significativa redução na altura média do PED (247 ± 177 µ) e, em dois olhos, o DEP estava completamente resolvido ao final do período de acompanhamento. A acuidade visual média aos 12 meses (0,69 ± 0,37) não foi diferente da inicial. CONCLUSÕES: Esta série de casos retrospectiva mostrou que a injeção intravítrea de terapia anti-VEGF preservou a visão e a reduziu a altura do DEP em pacientes com DMRI por um período de seguimento de um ano.


Assuntos
Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Anticorpos Monoclonais Humanizados/uso terapêutico , Degeneração Macular/complicações , Epitélio Pigmentado da Retina , Descolamento Retiniano/tratamento farmacológico , Fator A de Crescimento do Endotélio Vascular/antagonistas & inibidores , Seguimentos , Injeções Intravítreas , Estudos Retrospectivos , Descolamento Retiniano/etiologia , Fatores de Tempo , Resultado do Tratamento , Acuidade Visual
18.
Ulus Travma Acil Cerrahi Derg ; 19(4): 357-62, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23884679

RESUMO

BACKGROUND: We aimed to evaluate the etiologic factors, complications, follow-up, and treatment outcomes in serious hyphema following blunt ocular trauma in childhood. METHODS: The medical records of 136 patients diagnosed as grade 3 or 4 hyphema due to blunt ocular trauma between January 2006 and December 2011 were evaluated. Visual acuity (VA), complications, and medical and surgical treatments were analyzed. Factors affecting visual prognosis were compared in grade 3 and 4 hyphema cases. RESULTS: The mean age of patients was 9.7±4 years. Etiologic factors for trauma were stone in 53 (39%), bead bullet in 25 (18.4%) and others in 58 (42.6%) patients. The most common complication of grade 3 and 4 hyphema was traumatic mydriasis (19.1%), followed by cataract (9.6%) and glaucoma (5.1%). Medical treatment was successful in 114 (83.8%) patients, and 22 (16.2%) patients underwent surgery. Mean initial and final VA of grade 4 patients were found to be significantly lower than those of grade 3 patients. CONCLUSION: In grade 3 and 4 hyphema due to blunt trauma, visual prognosis worsened in the presence of additional ocular pathologies. Considering the bad visual prognosis of severe hyphema patients, prompt treatment and close follow-up may prevent complications resulting in poor VA.


Assuntos
Traumatismos Oculares/epidemiologia , Hifema/epidemiologia , Adolescente , Criança , Traumatismos Oculares/etiologia , Traumatismos Oculares/fisiopatologia , Feminino , Humanos , Hifema/complicações , Hifema/etiologia , Hifema/fisiopatologia , Masculino , Estudos Retrospectivos , Turquia/epidemiologia
19.
Int J Ophthalmol ; 6(2): 216-20, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23638427

RESUMO

AIM: To determine the incidence and risk factors of secondary glaucoma after pediatric cataract surgery. METHODS: Two hundred and forty nine eyes of 148 patients underwent cataract surgery without intraocular lens (IOL) implantation (group 1), and 220 eyes of 129 patients underwent cataract surgery with IOL implantation (group 2) retrospectively, were evaluated between 2000 and 2011. The outcome measure was the presence or absence of post-cataract surgery glaucoma, defined as an intraocular pressure (IOP) ≥26mmHg, as measured on at least two occasions along with corneal or optic nerve changes. RESULTS: The mean follow-up periods of group 1 and 2 were (60.86±30.95) months (12-123 months) and (62.11±31.29) months (14-115 months) respectively. In group 1, 12 eyes of 8 patients (4.8%) developed glaucoma. None of the patients developed glaucoma after surgery in group 2. The mean age of the patients at the cataract surgery was (2.58±0.90) months (1 month-4 months) and the average period for glaucoma development after surgery was (9.50±4.33) months (4-16 months) in group 1. Three of the 12 glaucomatous eyes were controlled with antiglaucomatous medication and 9 eyes underwent trabeculectomy+mitomycin C surgery. One patient underwent a second trabeculectomy + mitomycin C operation for both of his eyes. CONCLUSION: The incidence of glaucoma after pediatric cataract surgery is very low in patients in whom IOL is implanted. The aphakic eyes after pediatric cataract surgery are at an increased risk for glaucoma development particularly if they underwent surgery before 4 months of age.

20.
Pediatr Int ; 55(5): 599-603, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23659781

RESUMO

BACKGROUND: The aim of this study was to evaluate the treatment outcomes of intravitreal bevacizumab (IVB) injections, used as a monotherapy in type 1 retinopathy of prematurity (ROP). METHODS: A retrospective chart review was performed for 17 type 1 ROP patients (34 eyes), who had IVB injection between July 2011 and June 2012. Birthweight, gestational age at birth, stage and location of ROP, IVB injection time, time of complete retinal vascularization, and additional treatments if needed, were noted. A total of 0.625 mg (0.025 mL) bevacizumab was injected intravitreally. RESULTS: Thirty eyes of 17 patients with type 1 ROP enrolled in the study were treated with IVB injection. Of them seven had aggressive posterior-ROP, six had stage 2 ROP, and four had stage 3 ROP. The mean gestational age was 28.44 weeks (range, 26-31 weeks); and the mean birthweight was 1151.88 g (range, 600-1600 g). The mean age for IVB injection was 35.47 weeks. The mean full retinal vascularization time was 136.6 ± 26.6 days. The mean follow-up time was 285.3 ± 70 days. ROP was regressed and retinal vascularization was completed in all cases except one eye, which had threshold disease. CONCLUSION: IVB injection, used as a monotherapy, is an effective treatment approach in patients with type 1 ROP. Timely treatment of stage 2 and early stage 3 ROP in which disease progression was observed, prevents vitreoretinal membrane formation in posterior disease. Further studies need to be performed to determine the safety of IVB injection.


Assuntos
Anticorpos Monoclonais Humanizados/administração & dosagem , Retinopatia da Prematuridade/tratamento farmacológico , Inibidores da Angiogênese/administração & dosagem , Bevacizumab , Relação Dose-Resposta a Droga , Feminino , Seguimentos , Idade Gestacional , Humanos , Recém-Nascido , Recém-Nascido Prematuro , Injeções Intravítreas , Masculino , Retina/patologia , Estudos Retrospectivos , Resultado do Tratamento , Fator A de Crescimento do Endotélio Vascular
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA