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1.
Int Ophthalmol ; 44(1): 192, 2024 Apr 23.
Artigo em Inglês | MEDLINE | ID: mdl-38653839

RESUMO

BACKGROUND: To determine the quality and reliability of DCR YouTube videos as patient education resources and identify any associated factors predictive of video quality. METHODS: A YouTube search was conducted using the terms "Dacryocystorhinostomy, DCR, surgery" on 12th of January 2022, with the first 50 relevant videos selected for inclusion. For each video, the following was collected: video hyperlink, title, total views, months since the video was posted, video length, total likes/dislikes, authorship (i.e. surgeon, patient experience or media companies) and number of comments. The videos were graded independently by a resident, a registrar and an oculoplastic surgeon using three validated scoring systems: the Journal of the American Medical Association (JAMA), DISCERN, and Health on the Net (HON). RESULTS: The average number of video views was 22,992, with the mean length being 488.12 s and an average of 18 comments per video. The consensus JAMA, DISCERN and HON scores were 2.1 ± 0.6, 29.1 ± 8.8 and 2.7 ± 1.0, respectively. This indicated that the included videos were of a low quality, however, only DISCERN scores had good interobserver similarity. Videos posted by surgeons were superior to non-surgeons when considering mean JAMA and HON scores. No other factors were associated with the quality of educational content. CONCLUSION: The quality and reliability of DCR related content for patient education is relatively low. Based on this study's findings, patients should be encouraged to view videos created by surgeons or specialists in preference to other sources on YouTube.


Assuntos
Dacriocistorinostomia , Educação de Pacientes como Assunto , Mídias Sociais , Gravação em Vídeo , Humanos , Educação de Pacientes como Assunto/métodos , Dacriocistorinostomia/métodos , Reprodutibilidade dos Testes , Disseminação de Informação/métodos
2.
Orbit ; 42(3): 245-250, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35695493

RESUMO

PURPOSE: Bacterial orbital cellulitis (OC) and diffuse non-specific orbital inflammation (DNSOI) may be challenging to differentiate clinically. This study investigates the utility of systemic inflammatory markers, namely white cell count (WCC) and C-reactive protein (CRP), in differentiating between OC and DNSOI. METHODS: A single-centre retrospective study of patients diagnosed with OC or DNSOI, between 2003 to 2021, who had WCC and/or CRP obtained at presentation. The mean levels of these factors and the proportion of positivity were compared between OC and DNSOI. A receiver operating characteristic (ROC) analysis was conducted to calculate the specificity and sensitivity of WCC or CRP in each group. RESULTS: 49 patients were included in this study. The mean age was 56 ± 20 years, and 21 patients were females. 26 (53.1%) patients had OC, and 23 (46.9%) patients had DNSOI. Mean WCC for OC and DNSOI were 14.5 × 103/µL and 9.27 × 103/µL, respectively (P = 0.001). Mean CRP for OC and DNSOI were 104.4 mg/L and 10.0 mg/L, respectively (P < 0.001). The optimal CRP cut-off value of 20.2 mg/L demonstrated 90.9% sensitivity and 90.5% specificity (AUC = 0.946, P < 0.001) for differentiating between OC and DNSOI. CRP was more predictive of OC than WCC (P = 0.017). 7/26 (26.9%) OC patients with fever also had an elevated CRP, while 1/23 (4.3%) of DNSOI with fever had a normal CRP. CONCLUSIONS: An elevated WCC is suggestive of OC. However, a normal WCC can neither exclude nor differentiate between OC and DNSOI. CRP may be a more accurate predictor of OC compared to WCC.


Assuntos
Celulite Orbitária , Feminino , Humanos , Adulto , Pessoa de Meia-Idade , Idoso , Masculino , Estudos Retrospectivos , Biomarcadores/metabolismo , Celulite Orbitária/diagnóstico , Proteína C-Reativa/metabolismo , Inflamação , Contagem de Leucócitos
3.
Int Ophthalmol ; 43(8): 2687-2693, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-36952153

RESUMO

PURPOSE: To determine the etiology of epiphora in a tertiary Australian lacrimal clinic and highlight the high proportion of 'functional' cases. METHODS: Single-center retrospective review: Records of adult patients presenting to a tertiary lacrimal clinic from January 2011 to February 2021 with epiphora were reviewed. Patients underwent testing with syringing/probing and lacrimal imaging to reach a diagnosis of functional epiphora. Functional epiphora was diagnosed based on the exclusion of alternate causes of epiphora on clinical examination, patent lacrimal syringing, normal dacryocystography, and delay on dacryoscintigraphy. RESULTS: Five hundred and seventy-six symptomatic eyes of 372 adult patients (mean 66.2 ± 15.5 years, 63.4% females) with epiphora were evaluated for causes. Post-sac obstruction (stenosis/complete obstruction) and functional epiphora (non-anatomical delay) were the most common causes of presentations to the lacrimal clinic (26% each). Functional epiphora with post-sac delay was substantially more common than functional epiphora with pre-sac delay (89% vs. 11% of functional epiphora cases). In 16% of the cases, no cause for the epiphora was found while more than one cause (multifactorial) was present 11% of the time. CONCLUSION: Functional epiphora was found to be as common as a nasolacrimal anatomical obstruction when lacrimal imaging is utilized.


Assuntos
Dacriocistorinostomia , Doenças do Aparelho Lacrimal , Aparelho Lacrimal , Obstrução dos Ductos Lacrimais , Ducto Nasolacrimal , Adulto , Feminino , Humanos , Masculino , Obstrução dos Ductos Lacrimais/diagnóstico , Dacriocistorinostomia/efeitos adversos , Dacriocistorinostomia/métodos , Austrália , Doenças do Aparelho Lacrimal/diagnóstico , Doenças do Aparelho Lacrimal/etiologia , Doenças do Aparelho Lacrimal/cirurgia , Aparelho Lacrimal/diagnóstico por imagem
4.
Int Ophthalmol ; 43(4): 1127-1133, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36103103

RESUMO

PURPOSE: To determine the diagnostic value of 'soft stops' encountered during lacrimal syringing and probing. METHODS: Single-center retrospective review. Adult patients with epiphora attending a tertiary lacrimal clinic from May 2010 to April 2021 were reviewed. Cases with evidence of soft stop encountered during lacrimal syringing/probing were included, and patients with possible canaliculitis or a history of lacrimal surgery were excluded. Findings of syringing/probing consistent with pre-sac obstruction were correlated with dacryocystography (DCG) and surgical findings. RESULTS: 53 (10.2%) canalicular systems had soft stops on syringing/probing and were included in the analysis. The mean age of the patients was 63.8 ± 15.6 (range 28-87) years, and 27 (65.9%) were females. Intraoperative examination findings were available for 27 of 30 cases that underwent lacrimal surgery and DCG was available for 40 systems. Pre-sac obstruction found on syringing/probing was confirmed in 40% and 37% of cases on DCG and surgery, respectively. The correlation between syringing/probing and DCG was stronger for canalicular than for common canalicular location (p = 0.016). Canalicular stenosis on syringing/probing manifested as pre-sac abnormality on DCG in 5/7 (71.4%) compared to 0/6 common canalicular stenosis cases (p = 0.021). Based on the surgical findings, the false-positive rate of a soft stop on syringing/probing was highest for common canalicular 'stenosis' (100%) and lowest for canalicular 'block' (45.5%; p = 0.093). Findings of pre-sac obstructions on DCG were confirmed in 85.7% of the cases intraoperatively (p = 0.035 compared to syringing/probing alone). CONCLUSIONS: Soft stops on probing showed poor correlation with DCG and surgical findings, particularly in common canalicular location.


Assuntos
Doenças do Aparelho Lacrimal , Obstrução dos Ductos Lacrimais , Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Doenças do Aparelho Lacrimal/diagnóstico , Obstrução dos Ductos Lacrimais/diagnóstico por imagem , Obstrução dos Ductos Lacrimais/etiologia , Dacriocistografia , Estudos Retrospectivos , Dacriocistorinostomia
5.
Int Ophthalmol ; 43(1): 35-41, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35810396

RESUMO

PURPOSE: Pseudophakic cystoid macular edema (CME) occurs in up to 2% of uneventful cataract surgeries. This study evaluates changes in macular blood flow succeeding uneventful phacoemulsification cataract extraction among otherwise visually healthy subjects. METHODS: This prospective study included 18 eyes of 18 patients undergoing routine phacoemulsification. Optical coherence tomography angiography (OCT-A) was performed using the Angio-Retina 6 × 6 mm protocol with the XR Avanti Angio-Vue system (Optovue Inc., Fremont, California) prior to the surgery and 4-8 weeks thereafter. Exclusion criteria included motion artifacts, segmentation errors and signal strength index (SSI) < 40. The main outcome measure was change in flow index (FI) measured in all 4 retinal segmentation layers within an area of 1 mm diameter around the foveal center. RESULTS: Following surgery, a significant increase in SSI (46.65 ± 8.62 versus 53.12 ± 8.07, p = 0.01), superficial plexus FI (0.98 ± 0.23 versus 1.16 ± 0.16, p = 0.02) and deep plexus FI (0.54 ± 0.46 versus 0.93 ± 0.39, p = 0.01) was found. No significant changes were noted in the outer retina or the choriocapillaris. CONCLUSION: The study demonstrates a significant increase in FI in the superficial and deep retinal plexus following uneventful cataract surgery, with the greatest changes occurring in the latter. These findings corroborate evidence from structural imaging and support the vascular etiology of pseudophakic CME.


Assuntos
Catarata , Edema Macular , Humanos , Tomografia de Coerência Óptica/métodos , Estudos Prospectivos , Retina , Edema Macular/etiologia , Angiografia/efeitos adversos , Catarata/complicações , Angiofluoresceinografia
6.
Graefes Arch Clin Exp Ophthalmol ; 260(9): 3037-3042, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35460361

RESUMO

PURPOSE: To elucidate the role of syringing in assessing nasolacrimal duct (NLD) stenosis and non-anatomical functional NLD delay. METHODS: Consecutive adult patients with epiphora attending a tertiary lacrimal clinic from June 2011 to March 2021 were reviewed. Cases with evidence of canalicular stenosis or other identifiable causes of epiphora were excluded. Following syringing, patients were investigated with dacryocystography (DCG) and dacryoscintigraphy (DSG). The sensitivity and specificity of syringing were evaluated using the combined findings on DCG and DSG. RESULTS: A total of 289 symptomatic lacrimal systems (197 patients; mean age 65.5 ± 14.9 years, 66% females) were included. More than one-third of cases with both normal DCG and DSG were noted to have some degree of reflux on syringing (specificity = 65.1%, 95% CI 50.2-77.6%). The sensitivities were considerably low for NLD stenosis (i.e., stenosis on DCG and delay on DSG) and for functional NLD delay (i.e., normal DCG and delay on DSG), of which 43.7% (95% CI 32.2-55.9%) and 54.3% (95% CI 45.7-62.7%) had full patency on syringing, respectively (p = 0.17). CONCLUSIONS: Full patency on syringing was unreliable for ruling out NLD stenosis and functional delay. Furthermore, a positive syringing may be associated with functional NLD delay and cannot reliably differentiate it from stenosis.


Assuntos
Dacriocistorinostomia , Aparelho Lacrimal , Obstrução dos Ductos Lacrimais , Ducto Nasolacrimal , Adulto , Idoso , Idoso de 80 Anos ou mais , Constrição Patológica , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes
7.
BMC Ophthalmol ; 22(1): 148, 2022 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-35365118

RESUMO

BACKGROUND: Optical coherence tomography (OCT) is used worldwide by clinicians to evaluate macular and retinal nerve fiber layer (RNFL) characteristics. It is frequently utilized to assess disease severity, progression and efficacy of treatment, and therefore must be reliable and reproducible. OBJECTIVE: To examine the influence of signal strength on macular thickness parameters, macular volume measurement and RNFL thickness measured by spectral-domain optical coherence tomography (SD-OCT). METHODS: Macular thickness parameters, macular volume measurement and RNFL thickness were measured by the Spectralis® OCT (Heidelberg Engineering, Heidelberg, Germany). In each eye, the focusing knob was adjusted to obtain 4 images with different signal strengths - Low (below 15), Moderate (15-20), Good (20-25) and Excellent (above 25). The relationship between signal strength and measured data was assessed using the mixed model procedure. RESULTS: A total of 71 eyes of 41 healthy subjects were included. Central macular thickness, macular volume and mean RNFL thickness increased with decreasing signal strength. Specifically, eyes with excellent signal strength showed significantly thinner central macular thickness (p = 0.023), macular volume (p = 0.047), and mean RNFL thickness (p = 0.0139). CONCLUSIONS: Higher signal strength is associated with lower macular thickness, macular volume and RNFL thickness measurements. The mean differences between excellent and low-quality measurements were small implicating that SD-OCT is a reliable imaging tool even at low quality scans. It is imperative that the physician compares the signal strength of all scans, as minute differences may alter results.


Assuntos
Disco Óptico , Tomografia de Coerência Óptica , Humanos , Fibras Nervosas , Retina/diagnóstico por imagem , Células Ganglionares da Retina , Tomografia de Coerência Óptica/métodos
8.
Ophthalmic Plast Reconstr Surg ; 38(6): 567-570, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35502798

RESUMO

PURPOSE: To elucidate whether the specific cause of nasolacrimal duct drainage impairment impacts the severity, symptoms, and implications on visual tasks and quality of life (QOL) in epiphora. METHODS: A retrospective review of consecutive adult patients with epiphora attending a tertiary lacrimal clinic from June 2011 to March 2021 was conducted. Cases with evidence of canalicular stenosis, a mucocele, or other identifiable causes of epiphora were excluded. A structured interview assessed the epiphora severity (Munk), symptomatology, precipitating factors, and effects on visual tasks and QOL. Following lacrimal syringing, all eyes were investigated with dacryocystography and dacryoscintigraphy. The domains of the interview were compared between nasolacrimal duct obstruction (NLDO), stenosis (NLDS), and nonanatomical functional delay (FNLDO). RESULTS: One hundred twenty-two symptomatic eyes (63 patients; mean age 63.3 ± 17.2 years; 59% females) were included. There was no difference in Munk score between the groups (NLDO = 3.71 ± 0.18, NLDS = 3.79 ± 2.0, FNLDO = 3.85 ± 0.15; p = 0.82). In all 3 groups, most cases had a Munk >2 (86.8%, 75.9%, and 89.1%, respectively; p = 0.25). Discharge was more common in NLDO (65.7%) compared with NLDS (30.0%) and FNLDO (36.4%, p = 0.006). Worsening in the cold/wind was more frequent in FNLDO (77.1%) compared with NLDO (48.5%, p = 0.029). Effects on visual tasks and QOL were not significantly different. CONCLUSIONS: FNLDO patients experience a high severity of epiphora, comparable to patients with NLDS and those with complete NLDO. The distinction between FNLDO and NLDS had little consequence on reported symptoms, precipitating factors, visual tasks, and QOL. Discharge may be more specific to NLDO, whereas precipitating cold or wind is more specific to FNLDO.


Assuntos
Dacriocistorinostomia , Aparelho Lacrimal , Obstrução dos Ductos Lacrimais , Ducto Nasolacrimal , Adulto , Feminino , Humanos , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Masculino , Obstrução dos Ductos Lacrimais/diagnóstico , Qualidade de Vida , Constrição Patológica
9.
Retina ; 41(5): 1005-1009, 2021 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-32826789

RESUMO

PURPOSE: To identify risk factors for incorrect self-identification of the treatment eye before intravitreal injections. METHODS: This prospective study included consecutive patients who were asked to designate the eye for which the intravitreal injection was intended and were subsequently divided into two groups according to whether or not they identified the correct eye. RESULTS: Overall, 349 eyes (n = 349) were included, and 8.6% (n = 30) designated the incorrect eye or did not know which eye was intended for treatment. Incorrect designation was associated with diabetic macular edema (odds ratio [OR] = 0.33 [0.15-0.75]), first injection in the intended eye or ≥1 year since previous injection (OR = 0.34 [0.14-0.87]), Arabic native tongue (OR = 0.48 [0.22-1.01]), previous injection to the fellow eye (OR = 0.26 [0.10-0.64]), and concurrent treatment of both eyes (OR = 0.35 [0.16-0.74]). Multivariate analysis showed the first injection or ≥1 year since last injection in the treatment eye (R2 = 2.24%, P = 0.004, OR = 0.20 [0.07-0.57]) and previous injection in the fellow eye (R2 = 6.55%, P < 0.001, OR = 0.20 [0.07-0.52]) as significant independent predictors of incorrect identification. CONCLUSION: Several factors are associated with a greater probability for incorrect patient's self-identification of the eye laterality intended for intravitreal injections. These findings may help identify patients with a higher risk of such potential errors.


Assuntos
Bevacizumab/administração & dosagem , Retinopatia Diabética/tratamento farmacológico , Edema Macular/tratamento farmacológico , Erros Médicos/estatística & dados numéricos , Medição de Risco/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Inibidores da Angiogênese/administração & dosagem , Estudos de Casos e Controles , Retinopatia Diabética/complicações , Retinopatia Diabética/diagnóstico , Feminino , Seguimentos , Humanos , Injeções Intravítreas/métodos , Israel/epidemiologia , Edema Macular/diagnóstico , Edema Macular/etiologia , Masculino , Pessoa de Meia-Idade , Prevalência , Estudos Prospectivos , Fatores de Risco , Tomografia de Coerência Óptica/métodos , Fator A de Crescimento do Endotélio Vascular/antagonistas & inibidores , Acuidade Visual
10.
Ophthalmic Plast Reconstr Surg ; 37(5): e167-e170, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33710041

RESUMO

Adult-onset xanthogranuloma (AOX) typically affects the preseptal and anterior orbital regions. The authors report a 49-year-old man with a 6-month history of unilateral AOX, demonstrating diffuse extraconal and intraconal orbital involvement, including the lacrimal gland and extraocular muscles. There was frontal nerve enlargement, intracranial and pterygopalatine fossa involvement. Investigations excluded IgG4 disease and Erdheim-Chester disease. This case illustrates that AOX may be added to the causes of orbital nerve enlargement and may demonstrate intracranial extension.


Assuntos
Doença de Erdheim-Chester , Xantomatose , Adulto , Granuloma/diagnóstico , Humanos , Imunoglobulina G , Masculino , Pessoa de Meia-Idade , Tomografia Computadorizada por Raios X , Xantomatose/diagnóstico
11.
BMC Cardiovasc Disord ; 20(1): 524, 2020 12 17.
Artigo em Inglês | MEDLINE | ID: mdl-33334321

RESUMO

BACKGROUND: Population-based levels of the chronic low-grade systemic inflammation biomarker, C-reactive protein (CRP), vary widely among traditional populations, despite their apparent absence of chronic conditions associated with chronic low-grade systemic inflammation, such as type 2 diabetes, metabolic syndrome and cardiovascular disease. We have previously reported an apparent absence of aforementioned conditions amongst the traditional Melanesian horticulturalists of Kitava, Trobriand Islands, Papua New Guinea. Our objective in this study was to clarify associations between chronic low-grade systemic inflammation and chronic cardiometabolic conditions by measuring CRP in a Kitava population sample. For comparison purposes, CRP was also measured in Swedish controls matched for age and gender. METHODS: Fasting levels of serum CRP were measured cross-sectionally in ≥ 40-year-old Kitavans (N = 79) and Swedish controls (N = 83). RESULTS: CRP was lower for Kitavans compared to Swedish controls (Mdn 0.5 mg/L range 0.1-48 mg/L and Mdn 1.1 mg/L range 0.1-33 mg/L, respectively, r = .18 p = .02). Among Kitavans, there were small negative associations between lnCRP for CRP values < 10 and total, low-density lipoprotein (LDL) and non-high-density lipoprotein (non-HDL) cholesterol. Among Swedish controls, associations of lnCRP for CRP values < 10 were medium positive with weight, body mass index, waist circumference, hip circumference and waist-hip ratio and low positive with triglyceride, total cholesterol-HDL cholesterol ratio, triglyceride-HDL cholesterol ratio and serum insulin. CONCLUSIONS: Chronic low-grade systemic inflammation, measured as CRP, was lower among Kitavans compared to Swedish controls, indicating a lower and average cardiovascular risk, respectively, for these populations.


Assuntos
Proteína C-Reativa/análise , Horticultura , Mediadores da Inflamação/sangue , Inflamação/sangue , Ocupações , Adulto , Idoso , Idoso de 80 Anos ou mais , Biomarcadores/sangue , Estudos de Casos e Controles , Doença Crônica , Regulação para Baixo , Feminino , Humanos , Inflamação/diagnóstico , Masculino , Pessoa de Meia-Idade , Papua Nova Guiné
12.
Ophthalmology ; 126(12): 1617-1626, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31474440

RESUMO

PURPOSE: To determine the trends in prevalence of myopia in Israeli young adults over approximately a generation, as well as associated factors and variation in the impact of these factors on myopia prevalence in this region over time. DESIGN: Retrospective, cross-sectional study. PARTICIPANTS: One hundred four thousand six hundred eighty-nine consecutive persons 16 to 19 years of age born between 1971 and 1994 who had not yet enlisted in the Israeli Army but had completed the medical profiling process. METHODS: Using data collected at a north Israel recruitment center, the prevalence of myopia over time was estimated, and a polynomial regression analysis was performed to assess significance of nonlinear trends. Associations of demographic and socioeconomic factors with myopia were assessed, and trends over time were analyzed using a factorial logistic regression. MAIN OUTCOME MEASURES: The primary outcome measure was factors associated with the prevalence of myopia over time. The secondary outcome measure was a description of the change in prevalence of myopia over time. RESULTS: The prevalence of myopia increased 1.284-fold over 24 years from 20.4% among participants born between 1971 and 1982 to 26.2% among participants born between 1983 and 1994. A quite similar increase was observed among males (from 17.9% to 22.7%, respectively) and females (from 23.9% to 30.8%, respectively). The factors found to be associated with myopia were as follows: more recent date of birth, female gender, more years of education, being the eldest child, non-Israeli ethnic origin, and urban residence. However, there were significant trends over time in the effects of some of these factors, most notably an attenuation of the difference between participants of different religions in the recent birth-years period. Most of these associations and trends were observed in both males and females separately, with some gender-specific variations. Immigrants from Ethiopia who were raised in Israel were highly more likely to demonstrate myopia than those who arrived at an older age. CONCLUSIONS: This study demonstrated an increase in the prevalence of myopia and the possible associations of urbanization- and higher education-related factors among several subpopulations and the risk for myopia developing.


Assuntos
Miopia/epidemiologia , Adolescente , Efeitos Psicossociais da Doença , Estudos Transversais , Escolaridade , Etnicidade , Feminino , Humanos , Israel/epidemiologia , Masculino , Prevalência , Análise de Regressão , Estudos Retrospectivos , Fatores de Risco , Classe Social , Adulto Jovem
13.
Graefes Arch Clin Exp Ophthalmol ; 257(1): 225-232, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30121713

RESUMO

PURPOSE: To evaluate a multiple regression-derived nomogram for myopia and myopic astigmatism photorefractive keratectomy (PRK). METHODS: Regression modeling derived a formula for spherocylindrical correction in wavefront-optimized PRK (nomogram II). Treatment outcomes between eyes with myopia and myopic astigmatism using the manufacturer's nomogram (nomogram I) in the years 2010-2013 were retrospectively compared with eyes treated using nomogram II in the years 2014-2015. RESULTS: Overall 1100 eyes (of 561 patients) were operated using nomogram I and 791 eyes (of 406 patients) using nomogram II. Nomogram II achieved correction within ± 0.5 D of the attempted in 90% (95% CI 86.8-92.3%) of eyes with a spherical equivalent (SE) < |- 6|D, compared to 84% (95% CI 81.8-86.9%) in nomogram I. Overcorrection was reached in 14% (95% CI 10.1-18.3%) of eyes with SE ≥ |-6|D in nomogram II, compared to 22.6% (95% CI 18.1-27.2%) in nomogram I. Nomogram II achieved correction within ± 0.5 D of the attempted in 88.7% (95% CI 85.7-91.6%) of patients aged 18-23 years compared to 81.2% (95% CI 77.9-84.5%) in nomogram I; however, in 77% (95% CI 69.5-84.4%) versus 87.4% (95% CI 82.7-92.0%), respectively, among patients aged ≥ 30 years. In eyes with astigmatism ≥ 2 D, a postoperative astigmatism < 0.5 D was achieved in 89.4% (95% CI 83.0-95.7%) versus 72.9% (95% CI 64.3-81.5%), and a treatment efficacy index ≥ 0.9 was achieved in 100% versus 92.6% (95% CI 87.6-97.6%) with nomogram II versus nomogram I, respectively. CONCLUSION: There were several clinically significant benefits of the advanced nomogram in wavefront-optimized myopia PRK. On the other hand, there was a trend of lower accuracy in the older age group, warranting a second iteration.


Assuntos
Córnea/cirurgia , Lasers de Excimer/uso terapêutico , Miopia/cirurgia , Ceratectomia Fotorrefrativa/métodos , Refração Ocular/fisiologia , Acuidade Visual , Adolescente , Adulto , Feminino , Humanos , Masculino , Miopia/fisiopatologia , Nomogramas , Reprodutibilidade dos Testes , Estudos Retrospectivos , Adulto Jovem
14.
Int Ophthalmol ; 39(10): 2401-2406, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-30710252

RESUMO

PURPOSE: To describe a new technique for sealing small corneal perforations after penetrating trauma. METHODS: Corneal perforations in six eyes were sealed using a stromal cefuroxime hydration technique. This technique is identical to the current method used to seal leaking incisions upon completion of cataract surgery except for the use of cefuroxime instead of balanced salt solution. Additionally, cefuroxime was intentionally injected into the anterior chamber. A therapeutic contact lens was used after the hydration. Comparison was made in eight eyes with small traumatic corneal perforation that was sealed using therapeutic contact lenses without hydration. RESULTS: This novel technique was applied in six cases, with leakage stopping immediately following hydration in each of these eyes. In cases presenting with a shallow or flat anterior chamber, this maneuver produced immediate reformation of the chamber. Of note, the corneal scars after hydration were minimal with little effect on visual acuity. When compared to eyes with small corneal perforations which were sealed with therapeutic contact lenses without hydration, all cases that were hydrated with cefuroxime were sealed immediately, as opposed to cases treated without hydration. Furthermore, the eyes that underwent hydration with cefuroxime had a worse average visual acuity on admission, a better average visual acuity 1 month post-trauma, and a shorter average length of hospitalization. CONCLUSIONS: This new technique offers five major advantages: (1) Immediate sealing of the corneal perforation is achieved. (2) Definitive treatment can be achieved at the slit lamp. (3) Since neither stitches nor glue is applied, healing is achieved with minimal scarring and discomfort. (4) Little equipment is required. (5) Injection of cefuroxime into the anterior chamber provides prophylaxis against infection.


Assuntos
Antibacterianos/uso terapêutico , Cefuroxima/uso terapêutico , Perfuração da Córnea/terapia , Ferimentos Oculares Penetrantes/terapia , Adulto , Lentes de Contato Hidrofílicas , Feminino , Humanos , Injeções Intraoculares , Masculino , Estudos Retrospectivos
15.
Minim Invasive Ther Allied Technol ; 27(4): 221-225, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28982276

RESUMO

INTRODUCTION: Since the advent of laparoscopy there have been attempts to minimize abdominal wall incisions. For this purpose smaller instruments have been produced. Our aim was to develop the first 3 mm percutaneous clip applier and to make it better than the standard clips of today. MATERIAL AND METHODS: The ClipTip clip is made of Nitinol and has a crocodile shaped jaws, which when apposed effectively seal vessels. The shaft operates as a retractable needle permitting percutaneous insertion. Closing, reopening and reclosing is possible. The physical properties of the device were compared to three commercially available clip appliers. Surgeries were performed on porcine animals by experienced surgeons. RESULTS: In comparison to available clips, the superiority of the ClipTip is a combination of wide effective length alongside the ability to withstand strong forces. In live animal studies the Cliptip was inserted into the peritoneal cavity without any injuries. Vessels were ligated successfully and no clip dislodgement or leakage occurred. CONCLUSIONS: We developed the next generation clip applier with better properties. Advantages include its length, the needleoscopic caliber, non-crushing effect, locking mechanism and wide aperture. The device has performed safely and effectively in pre-clinical tests. Further studies are planned in humans.


Assuntos
Laparoscopia/instrumentação , Instrumentos Cirúrgicos , Ligas , Animais , Desenho de Equipamento , Suínos
16.
Int Ophthalmol ; 38(6): 2547-2551, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29075941

RESUMO

PURPOSE: To analyze the correlation between central corneal thickness (CCT) and myopia in refractive surgery candidates. MATERIALS AND METHODS: Patients that underwent myopic laser refractive surgery between January 2000 and December 2014 were included. Preoperative CCT was measured by ultrasonic pachymetry, and refractive status determined by manifest and cycloplegic refraction. RESULTS: A total of 30,245 individuals were included. Mean age was 28.2 ± 8.6 years, and 45.9% were female. Mean refractive error was 4.02 ± 2.17 D (range 0.25-19.5), and the mean CCT measurement was 533.5 ± 35.5 µm (range 404-794). Younger individuals showed higher degree of myopia (p = 0.006). No difference in CCT was found between women and men (533.0 ± 35.1 and 533.6 ± 35.9 µm, respectively, p = 0.19). Though CCT showed no correlation with age (p = 0.226) participants above age 40 expressed higher CCT values (p < 0.001). No significant correlation was found between the CCT and cylinder (p > 0.05). An increase in mean keratometry was associated with a decrease in CCT (p < 0.001). There was a direct correlation between the degree of myopia and CCT (r = 0.94, p < 0.001). The result remained the same after adjusting for age group and gender in stepwise backward regression analysis (p < 0.001). CONCLUSION: Central corneal thickness is correlated with the degree of myopia among adults undergoing refractive surgery.


Assuntos
Córnea/patologia , Miopia/patologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Análise de Variância , Paquimetria Corneana , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Miopia/fisiopatologia , Miopia/cirurgia , Refração Ocular/fisiologia , Erros de Refração/fisiopatologia , Procedimentos Cirúrgicos Refrativos , Estudos Retrospectivos , Adulto Jovem
17.
18.
J Clin Med ; 13(7)2024 Apr 08.
Artigo em Inglês | MEDLINE | ID: mdl-38610907

RESUMO

Background: The aim of this study is to report outcomes of eyelid full-thickness skin grafting augmentation in facial nerve palsy (FNP) patients younger than 50 years of age. Methods: In a retrospective, consecutive case series, nine eyelid skin grafts performed on eight FNP patients with skin contraction (five females; median age 42 years [range, 17-47]) are presented. In most cases, upper eyelid skin grafting was combined with levator recession and anterior lamellar repositioning. Lower eyelid skin grafting was combined with lower retractors recession in all cases. Functional and cosmetic outcomes were measured preoperatively and at early (1-3 months), intermediate (3-6 months), and late (≥12 months) follow-up. Results: The corneal score improved at early follow-up (p = 0.03) and remained improved at late follow-up (p = 0.042). The gentle closure lagophthalmos was improved at late follow-up (p = 0.042). (p = 0.048). The grades of graft color, edge/skin interface, and size improved at 3-6 months post-grafting and remained improved at late follow-up (p < 0.05). Over the follow-up, four patients (50%) were recommended to have further surgical procedures. Conclusions: The preliminary results from this small cohort suggest that eyelid skin grafting is a viable option for young patients prioritizing cosmesis. This technique warrants consideration for its functional benefits.

19.
Semin Ophthalmol ; 39(2): 158-164, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37697818

RESUMO

OBJECTIVE: To evaluate dynamic magnetic resonance dacryocystography (MRDCG) in eyes with functional epiphora. METHODS: We included prospective eyes with epiphora if no alternative cause was found on clinical examination, were patent on syringing, had no obstruction or stenosis on DCG, and had an abnormal DSG. MRDCG was performed to qualitatively assess for block or patency and quantitatively measure tear transit time. We compared measurements to asymptomatic fellow eyes and to historical reference values from asymptomatic eyes. RESULTS: We included 26 symptomatic eyes of 19 patients (median age 63 years). There was a block on MRDCG in 18 (69%) eyes and patency in 8 (31%) eyes. The block occurred at the sac-nasolacrimal duct (NLD) junction in 9 (50%), proximal NLD in 5 (28%), mid-NLD in 1 (5.6%), and distal NLD in 1 (5.6%) eye(s). No contrast was observed in the lacrimal system in two eyes. For eyes patent on MRDCG, median times to the sac, NLD, inferior meatus, first 25%, and first 50% of the fundus-to-nose distance (FND) were 22, 54, 118, 34, and 84 s, respectively. Times to the sac, NLD, and to fill the first 25% and 50% of the FND were significantly longer than historical values from asymptomatic lacrimal systems (p = 0.017, 0.050, 0.035, 0.017, respectively). CONCLUSION: MRDCG shows a high rate of block in functional epiphora. However, DSG and MRDCG results may not always correlate. The improved temporal resolution of this emerging modality may be advantageous in the critical first 2 min of tear transit.


Assuntos
Dacriocistorinostomia , Doenças do Aparelho Lacrimal , Obstrução dos Ductos Lacrimais , Ducto Nasolacrimal , Humanos , Pessoa de Meia-Idade , Projetos Piloto , Dacriocistografia , Estudos Prospectivos , Doenças do Aparelho Lacrimal/diagnóstico , Doenças do Aparelho Lacrimal/patologia , Doenças do Aparelho Lacrimal/cirurgia , Imageamento por Ressonância Magnética , Espectroscopia de Ressonância Magnética , Obstrução dos Ductos Lacrimais/diagnóstico
20.
BMC Med ; 11: 89, 2013 Apr 04.
Artigo em Inglês | MEDLINE | ID: mdl-23556408

RESUMO

BACKGROUND: Celiac disease is a life-long autoimmune condition, affecting genetically susceptible individuals that may present with thromboembolic phenomena. This thrombophilia represents a puzzle with multiple constituents: hyperhomocysteinemia, B12 and\or folate deficiency, methylenetetrahydrofolate reductase mutations, and protein C and S deficiency due to vitamin K deficiency. However, the well known thrombogenic factors, antiphosphatidylserine/prothrombin and antiprothrombin have never been explored in celiac disease. METHODS: The serum autoantibody levels were determined in 248 individuals, classified into three groups. Group 1 comprised 70 children with definitive celiac disease (age: 7.04 ±4.3 years, male to female ratio 1.06) and group 2 comprised 88 normal children (age: 6.7 ±4.17 years, male to female ratio 0.87), representing controls. The pediatric populations were compared to group 3, which included 90 adults who were family members (parents) of group 1 (age: 34.6 ±11.35 years, male to female ratio 1.2). Antibodies were checked by enzyme-linked immunosorbent assay. RESULTS: Mean optical density levels of serum antiphosphatidylserine/prothrombin immunoglobulin G antibodies were 32.4 ±19.4, 3.6 ±2.5 and 16.1 ±15.8 absorbance units in groups 1, 2 and 3 respectively (P <0.0001), with 45.7%, 0% and 7.8% of groups 1, 2 and 3 respectively positive for the antibody (P <0.01). Mean optical density levels of serum antiphosphatidylserine/prothrombin immunoglobulin M antibodies were 14.2 ±8.7, 6.7 ±6.4 and 12.4 ±15.5 absorbance units in groups 1, 2 and 3 respectively (P <0.0001), with 7.1%, 3.4% and 9.9% of groups 1, 2 and 3 positive for the antibody. Mean optical density levels of serum antiprothrombin and antiphospholipid immunoglobulin G antibodies were higher in groups 1 and 3 compared with 2 (P <0.005) and in groups 1 and 2 compared with 3 (P <0.01), respectively. Groups 1, 2 and 3 were positive for antiphospholipid immunoglobulin G antibodies (groups 1 and 2 compared with 3) . Celiac disease sera harbor a higher antiprothrombin immunoglobulin G level compared with controls. CONCLUSIONS: It is suggested that the intestinal injury, endothelial dysfunction, platelet abnormality and enhanced apoptosis recently described in celiac disease are at the origin of the increased exposure of phospholipids or new epitopes representing autoantigens. Those autoantibodies might play a pathogenic role in the thrombophilia associated with celiac disease and represent markers for potential anticoagulant preventive therapy.


Assuntos
Autoanticorpos/sangue , Autoanticorpos/imunologia , Doença Celíaca/complicações , Doença Celíaca/imunologia , Trombofilia/etiologia , Trombofilia/imunologia , Adulto , Criança , Pré-Escolar , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
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