Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 8.897
Filtrar
1.
Wiad Lek ; 73(1): 104-106, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32124817

RESUMO

OBJECTIVE: The aim was to examine intraocular pressure (IOP) during lumbar spine surgery in PP under general vs spinal anesthesia and to compare it with volunteers in PP. PATIENTS AND METHODS: Materials and methods: We performed randomized prospective single institutional trial. Patients were operated in PP with fixation of 1-2 spinal segments. Patients of group I (n = 30) were operated under SA, group 2A (n = 25) - under TIVA (total intravenous anesthesia) with 45° head rotation (left eye was located lower, than right eye), group 2B (n=25) - under TIVA with no head rotation (both eyes were located on the same level). IOP was measured with Maklakov method before and after surgery. Volunteers (n = 20) were examined before and 90 minutes after lying in PP with 45° head rotation. RESULTS: Results: In all patients and volunteers after lying in PP, we found that IOP have increased. In SA patients and in TIVA patients with no head rotation there was no difference between eyes. The most significant raise of IOP was found in the dependent eye of IIA group patients: it was higher than in volunteers and I group patients (p < 0.01), and IIB group patients (p < 0.05). In SA patients there was no difference in IOP comparing to volunteers. CONCLUSION: Conclusions: IOP increased in PP in healthy people and patients under anesthesia (SA and TIVA). IOP in SA patients did not differ from volunteers. IOP increased superiorly in the dependent eye in TIVA patients.


Assuntos
Pressão Intraocular , Tonometria Ocular , Humanos , Posicionamento do Paciente , Decúbito Ventral , Estudos Prospectivos
2.
Medicine (Baltimore) ; 99(7): e19126, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-32049829

RESUMO

Structural differences have been reported between primary open angle glaucoma (POAG) and normal tension glaucoma (NTG), and biomechanical differences between POAG and NTG may account for why NTG patients are more vulnerable to lower intraocular pressure (IOP). This study compared the biomechanical properties of POAG and NTG patients using the Corvis scheimpflug technology (ST) non-contact Scheimpflug-based tonometer, and determined the factors associated with these properties.In this retrospective cross-sectional study, 46 eyes with POAG, 54 eyes with NTG, and 61 control eyes were included. A non-contact Scheimpflug-based tonometer was used to examine and compare the corneal biomechanical responses in the POAG, NTG, and normal groups. We used univariate and multivariate regression analyses to determine the factors associated with the deformation amplitude in each group.Baseline characteristics, including age, IOP, spherical equivalent, keratometry, axial length, and central corneal thickness, were similar among the 3 groups. Severity of glaucoma, as measured by mean deviation, was similar between POAG and NTG groups. Applanation 1 velocity and deformation amplitude were significantly smaller in POAG (0.13 ±â€Š0.02 and 1.06 ±â€Š0.14, respectively) than NTG (0.14 ±â€Š0.01 and 1.13 ±â€Š0.11, respectively) and normal groups (0.14 ±â€Š0.02 and 1.13 ±â€Š0.10, respectively). Radius of curvature was significantly larger in the POAG group compared to the normal group. In normal controls, IOP and keratometry were significant factors related to deformation amplitude. In POAG eyes, IOP was a statistically significant predictor of deformation amplitude. In NTG eyes, however, IOP , keratometry, and axial length were statistically significant predictors of deformation amplitude.POAG eyes showed less deformable corneas compared to NTG and normal controls. IOP was significantly correlated with deformation amplitude in all groups. However, axial length was positively correlated with deformation amplitude only in NTG eyes. Characterization of the differences in biomechanical properties between POAG and NTG may contribute to a better understanding of the underlying pathophysiologies associated with these diseases.


Assuntos
Córnea/fisiopatologia , Glaucoma de Ângulo Aberto/fisiopatologia , Glaucoma de Baixa Tensão/fisiopatologia , Adulto , Idoso , Estudos de Casos e Controles , Feminino , Humanos , Pressão Intraocular , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Tonometria Ocular/instrumentação
3.
Zhonghua Yan Ke Za Zhi ; 56(2): 110-117, 2020 Feb 11.
Artigo em Chinês | MEDLINE | ID: mdl-32074821

RESUMO

Objective: To investigate the influence factors and differences of abnormal posterior corneal elevation by Pentacam system and Corvis ST. Methods: This retrospective case series study included 227 eyes of 144 patients (90 males, 139 eyes; 54 females, 88 eyes) from December 2017 to October 2018 who were going to receive corneal refractive surgery at the Corneal Refraction Department of Qingdao Eye Hospital. The general data of the patients including gender, age, refractive parameters, optimal correction of spherical and cylindrical diopters were collected. All patients underwent Pentacam system and Corvis ST measurement. According to the back difference (BD) of Pentacam parameters, BD<12 µm was set as the control group (59 patients, 118 eyes) and BD≥12 µm as the high BD group (85 patients, 109 eyes). In the high BD group, BD≤16 µm was set as the suspicious group (44 patients, 53 eyes), while BD>16 µm was set as the abnormal group (41 patients, 56 eyes). Seven parameters of Pentacam and 15 parameters of Corvis ST were selected. The Pentacam parameters included BD, anterior surface keratometry (ASK), posterior surface keratometry (PSK), anterior surface astigmatism (AAstig), posterior surface astigmatism (PAstig), central corneal thickness (CCT), and corneal diameter (W-W). The parameters of Corvis ST included the first applanation time (AT(1)), the first applanation length (AL(1)), the first applanation velocity (AV(1)), the second applanation time (AT(2)), the second applanation length (AL(2)), the second applanation velocity (AV(2)), highest concavity time (HCT), highest concavity peak distance (HC-PD), highest concavity deformation amplitude (HC-DA), highest concavity radius (HC-R), the ratio of deformation amplitude (DA ratio), Integr. Radius, corneal thickness thinnest/pachymetric progression (ARTh), SPA1 (resultant pressure divided by deflection amplitude at the first applanation), and the Corvis Biomechanical Index (CBI). The comparison between the groups was analyzed with Independent sample t test, Kruskal-Wallis H test, and Bonferroni test. Spearman rank correlation analysis was used to explore the correlation factors of BD, and the main factors affecting BD were found through multiple linear regression. Results: There were no statistically significant differences between the control group and the high BD group in age, spherical diopters, and cylindrical diopters (t=-3.311, -1.808, -2.359; P=0.071, 0.072, 0.121, respectively). In Pentacam parameters, ASK, PSK, PAstig, and W-W showed significant differences among groups (Z=18.492, 31.547, 10.773, 70.167; P<0.05). AAstig and CCT showed no statistical difference between groups (P>0.05). Compared with the control group [42.80 (41.98, 44.00)], ASK increased in the abnormal group [43.40 (42.20, 44.40)] significantly (t=-4.292; P<0.05). PSK of the suspicious group [-6.50 (-6.60, -6.35)] and the abnormal group [-6.50 (-6.70, -6.33)] increased significantly compared with the control group [-6.30 (-6.50, -6.20)] (t=4.492, 4.618; P<0.05). Compared with the control group [0.40 (0.30, 0.50)], PAstig of the suspicious group [0.40 (0.30, 0.40)] and the abnormal group [0.40 (0.30, 0.40)] increased significantly (t=2.796, 2.515; P=0.016, 0.036). Compared with the control group [11.50 (11.40, 11.80)], W-W of the suspicious group [11.40 (11.00, 11.60)] and the abnormal group [11.10 (10.90, 11.30)] decreased, and W-W of the abnormal group also decreased significantly compared with the suspicious group (t=3.235, 8.353, 4.282; P<0.05). The correlation analysis between BD and Pentacam parameters of patients in each group showed that BD was negatively correlated with W-W (r=-0.614, -0.304, -0.396, -0.661, P<0.05) in the control group, the suspicious group, the abnormal group, and all patients, while BD had a low correlation with other parameters or no significant correlation. The correlation analysis of BD and Corvis ST parameters in patients showed that only in the suspicious group, BD was positively correlated with AV(1), HCT, and HC-DA (r=0.332, 0.361, 0.382, P<0.05), while no significant correlation was found between BD and other Corvis ST parameters in each group. In order to further explore the main factors affecting BD, Pentacam parameters and Corvis ST parameters were selected as independent variables with BD as the dependent variable to establish a multivariate linear regression analysis model. There was no collinearity between variables W-W, ASK, PSK, HC-PD, SPA1, and CCT (tolerance<0.100). The equation test result was F=37.221, P<0.001, adjusted r(2)=0.504, and the fitting was good. Conclusions: Among the Pentacam parameters, W-W, ASK, and PSK are the main factors affecting the change of BD. HC-PD and SPA1 in the Corvis ST parameters may also have some influence on BD. The Pentacam system combined with Corvis ST is a very useful differential diagnosis system for patients with abnormal BD. (Chin J Ophthalmol, 2020, 56:110-117).


Assuntos
Córnea , Pressão Intraocular , Tonometria Ocular , Fenômenos Biomecânicos , Córnea/anormalidades , Feminino , Humanos , Masculino , Estudos Retrospectivos
4.
Zhonghua Yan Ke Za Zhi ; 56(1): 13-16, 2020 Jan 11.
Artigo em Chinês | MEDLINE | ID: mdl-31937058

RESUMO

Glaucoma surgery is one of the main methods of glaucoma treatment. In recent years, glaucoma surgery has been greatly developed. Minimally invasive surgical procedures for glaucoma have emerged. Patients and surgeons have also increased their expectations of surgery. However, due to the limitation of surgical controllability, the prediction of postoperative efficacy is still not satisfactory. By analyzing the principles and limitations of the existing surgical procedures, the authors put forward the premise of the controllability of glaucoma extrafiltration surgery as that the intraoperative filtration excess can be restricted, so as to effectively avoid the early postoperative complications such as shallow anterior chamber, hypotony and strong inflammation. And within 1 month after surgery, through the filtration of the bubble and the removal of the adjustable suture, the ideal filtration state is gradually achieved. With the controllable maintenance of intraocular pressure at 1 month after surgery, it is possible to effectively predict the intraocular pressure level of 2 years or longer. (Chin J Ophthalmol, 2020, 56: 13-16).


Assuntos
Cirurgia Filtrante/métodos , Glaucoma/cirurgia , Pressão Intraocular , Glaucoma/diagnóstico , Humanos , Implante de Lente Intraocular , Facoemulsificação , Complicações Pós-Operatórias , Suturas , Tonometria Ocular , Resultado do Tratamento
5.
Zhonghua Yan Ke Za Zhi ; 56(1): 25-31, 2020 Jan 11.
Artigo em Chinês | MEDLINE | ID: mdl-31937060

RESUMO

Objective: To explore the effect of listening to different types of music on intraocular pressure (IOP) and the underlying mechanism. Methods: Cross-sectional study. Participants were students from Sun Yat-sen University from October 2017 to May 2018. The study consisted of two parts. In part 1, three types of music, including relaxing, positive and negative music, were used to find out which kind of music could reduce IOP. IOP was measured before and after listening to music. A self-report questionnaire was used to evaluate emotional responses to each type of music. In part 2, the diurnal curve of IOP at 6 time points of 7:30, 9:30, 11:30, 13:30, 15:30 and 17:30 was measured to determine when the individual's IOP peaked. On the second day, the subject listened to the music that could reduce IOP for 15 minutes at his/her IOP peak time. IOP, blood pressure (BP) and heart rate (HR) were measured, and morphology of the chamber angle was captured by swept-source optical coherence tomography before and after listening to music. Image J software was used to measure the diameter and cross-sectional area of Schlemm's canal (SC). Paired t-test was used to compare BP, HR and SC measurements prior to and post-music intervention. Results: In part 1, fifteen subjects, including 7 males and 8 females, were enrolled, with an average age of (23±1) years. Relaxation music could significantly lower IOP [(11.62±2.51) vs. (12.65±2.49) mmHg (1 mmHg=0.133 kPa) , t=-2.39, P=0.032]. Positive music had no effect on IOP [(12.45±2.77) vs. (12.65±2.46) mmHg, P=0.566] and negative music increased IOP [(12.13±1.60) vs. (10.86±2.78) mmHg, t=2.45, P=0.029]. Relaxation music could also arouse relaxation emotions in 14 out of 15 subjects. In part 2, 55 subjects, including 20 males and 35 females, were enrolled, with an average age of (26±10) years. The diurnal curve of IOP at 6 time points of every participant was measured. At each individual's peak time point, listening to relaxation music could decrease IOP [(12.66±4.32) vs. (13.99±4.47) mmHg, t=-5.72, P<0.01]. HR before and after listening to relaxation music was (79.57±10.43) and (75.57±9.62) beats/min, respectively (t=-3.68, P=0.001). Systolic BP was (118.11±13.92) and (110.82±12.67) mmHg, respectively (t=-5.10, P<0.01). Diastolic BP significantly declined from (70.07±9.96) to (66.14±8.48) mmHg (t=-3.65, P=0.001). Average SC area significantly increased after listening to relaxation music [(255.96±93.36) vs. (230.07±92.20) pixels, t=2.88, P=0.006]. Average SC diameter was (8.62±1.89) and (9.41±2.37) pixels, respectively before and after listening to relaxation music (t=3.39, P=0.001). Conclusion: Relaxation music reduces IOP in healthy subjects probably by dilating the SC.(Chin J Ophthalmol, 2020, 56: 25-31).


Assuntos
Glaucoma/fisiopatologia , Pressão Intraocular/fisiologia , Música , Adulto , Câmara Anterior , Estudos Transversais , Feminino , Humanos , Masculino , Esclera , Tonometria Ocular , Adulto Jovem
6.
Zhonghua Yan Ke Za Zhi ; 56(1): 66-70, 2020 Jan 11.
Artigo em Chinês | MEDLINE | ID: mdl-31937066

RESUMO

In recent years, with the improvement of high-intensity focused ultrasound technology, ultrasound cycloplasty has once again gained clinical recognition, becoming one of the non-invasive procedures for glaucoma treatment. Although high-level evidence is still lacking so far, the existing literature has shown that ultrasound cycloplasty can effectively and safely decreases the intraocular pressure in glaucoma by reducing the formation of aqueous humor and increasing the drainage of aqueous humor through the uveoscleral pathway. This article focuses on the efficacy and safety of ultrasound cycloplasty in the treatment of glaucoma, reviews the existing literature, and summarizes the information on the development of equipment, treatment mechanisms, surgical procedures, effectiveness of intraocular pressure reduction, and post-operative complications, with the purpose to provide reference for clinical research and application. (Chin J Ophthalmol, 2020, 56: 66-70).


Assuntos
Corpo Ciliar/cirurgia , Glaucoma/cirurgia , Ablação por Ultrassom Focalizado de Alta Intensidade/métodos , Pressão Intraocular/fisiologia , Humor Aquoso , Glaucoma/diagnóstico , Humanos , Tonometria Ocular , Resultado do Tratamento , Terapia por Ultrassom , Acuidade Visual
7.
Curr Opin Ophthalmol ; 31(2): 107-113, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31895152

RESUMO

PURPOSE OF REVIEW: Patients with glaucoma with disease progression despite low or normal intraocular pressure (IOP) present special challenges to the treating clinician. Treatment goals may depend on whether patients have apparent low IOP with concurrent treatment or have low IOP at baseline without treatment. We review the diagnostic and therapeutic approaches to these patients. RECENT FINDINGS: Apparent progression at low IOP should start with confirmation of IOP, made easier by devices enabling patient home self-tonometry. Suspected visual field progression should be confirmed by repeat testing prior to advancement of therapy. Trabeculectomy remains the most effective surgical method of achieving long-term success, particularly when there is a low starting IOP. Drainage tube implantation or the use of novel micro-incisional non-bleb-forming procedures are less likely to be successful in achieving low IOP goals. SUMMARY: Diagnostic testing is important in confirming progressive glaucomatous disease at low IOP levels. The most effective way of slowing the progression of glaucoma in a patient with low IOP is to lower the IOP further, sometimes to single digit levels, which is most often achievable with trabeculectomy.


Assuntos
Glaucoma de Ângulo Aberto/fisiopatologia , Glaucoma de Ângulo Aberto/cirurgia , Pressão Intraocular/fisiologia , Trabeculectomia , Progressão da Doença , Implantes para Drenagem de Glaucoma , Glaucoma de Ângulo Aberto/diagnóstico , Humanos , Tonometria Ocular , Campos Visuais/fisiologia
8.
Curr Opin Ophthalmol ; 31(2): 132-138, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31922979

RESUMO

PURPOSE OF REVIEW: This review will provide an update on surgical techniques, outcomes, and complications for two new translimbal bleb-forming surgical glaucoma devices. RECENT FINDINGS: The XEN Gel Microstent and PreserFlo MicroShunt comprise a category of subconjunctival microinvasive glaucoma surgery developed with the aim of improving the predictability and safety profile of bleb-forming procedures. Both devices are made of noninflammatory material which limits postsurgical inflammation and scarring and have a valve-less intrinsic flow-limiting design, which decreases the risk of hypotony. There are various techniques of implantation for the XEN Gel Microstent each with their own advantages and disadvantages. SUMMARY: These devices have demonstrated promising outcomes in early experimental literature with similar intraocular pressure-lowering effects to traditional incisional surgery such as trabeculectomy or tube shunt surgery, but with fewer risks. Future randomized, prospective studies should be done to compare these gel stents and microshunts both to each other and to other traditional glaucoma surgeries.


Assuntos
Implantes para Drenagem de Glaucoma , Glaucoma/cirurgia , Stents , Túnica Conjuntiva/cirurgia , Glaucoma/fisiopatologia , Humanos , Pressão Intraocular/fisiologia , Implantação de Prótese , Tonometria Ocular , Trabeculectomia
9.
Curr Opin Ophthalmol ; 31(2): 85-90, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31922980

RESUMO

PURPOSE OF REVIEW: A process is ongoing to produce a definition of glaucomatous optic neuropathy (GON) using quantitative, objective data from structural and functional tests. At present, a common practice is to define GON by subjective features said to be 'characteristic' as judged by those experienced in glaucoma care. RECENT FINDINGS: An objective definition would standardize the comparison of clinical research results across studies, without precluding simultaneous use of idiosyncratic definitions in the same reports. To achieve this goal, expert opinion was solicited to reach optimal agreement on one or more consensus, GON definitions. An interactive period of online discussion by 176 international experts led to 110 responses in an online survey that narrowed possible definitional structures into testable criteria. SUMMARY: Two approaches to validation of one or more sets of criteria for definite and possible GON are ongoing. The general principles include definition for each eye individually, inclusion of a borderline category, no intraocular pressure criterion, and both structural and functional defects in appropriate physical locations. Each validation approach uses clinician diagnosis as a standard against which objective criteria are compared, with the initial approach using a three-level categorical scale, and the second approach using 0--100 scaling.


Assuntos
Glaucoma/diagnóstico , Doenças do Nervo Óptico/diagnóstico , Pesquisa Biomédica , Consenso , Humanos , Pressão Intraocular/fisiologia , Tonometria Ocular
10.
Eur J Ophthalmol ; 30(1): 217-220, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30862191

RESUMO

PURPOSE: Over-filtration and subsequent hypotony are recognised complications of penetrating glaucoma procedures, especially when augmented with antimetabolites. Patients with uveitis are especially at risk of hypotony and this can reduce the final acuity achieved, compromise surgical outcomes and adversely affect the inflammatory status. The incidence of hypotony following XEN45 implant insertion is higher for uveitic patients and we present a method of surgically addressing this hypotony with transconjunctival compression sutures that are placed over the overdraining XEN45 implant. METHODS: We present a retrospective case series of consecutive uveitic glaucoma patients who had conjunctival compression sutures between 2015 and 2018 following XEN45 insertion, at the Manchester Royal Eye Hospital, UK. Two 9/0 nylon sutures were placed in a horizontal figure-of-eight conformation transconjunctivally across the overdraining bleb: one directly over the XEN45 implant and one at the posterior limit of the implant in order to restrict flow. RESULTS: Three patients underwent conjunctival compression sutures following XEN45 implant-related hypotony and all three had successful resolution of their hypotony and visual symptoms. No patients required long-term topical agents to control their intraocular pressure. CONCLUSION: Conjunctival compression sutures are an effective option for addressing persistent hypotony following XEN45 implant insertion in patients with uveitic glaucoma.


Assuntos
Túnica Conjuntiva/cirurgia , Implantes para Drenagem de Glaucoma/efeitos adversos , Glaucoma/cirurgia , Hipotensão Ocular/cirurgia , Técnicas de Sutura , Uveíte/cirurgia , Adulto , Feminino , Humanos , Pressão Intraocular/fisiologia , Masculino , Pessoa de Meia-Idade , Hipotensão Ocular/etiologia , Hipotensão Ocular/fisiopatologia , Complicações Pós-Operatórias , Estudos Retrospectivos , Suturas , Tonometria Ocular , Trabeculectomia/métodos
11.
Eur J Ophthalmol ; 30(1): 221-223, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31177825

RESUMO

PURPOSE: To present our experience treating hypotony maculopathy with a simple, minimally invasive, and removable ab interno tube Ahmed glaucoma valve occlusion. METHODS: Under topical anesthesia a 5-0 polypropylene suture (Prolene; Ethicon) was inserted into the Ahmed glaucoma valve tube. The length of the tube was measured, and an external suture cauterization was performed to allow an easier and safer fixation in the tube. The suture was introduced into the tube itself with the viscoelastic 27-gauge cannula. RESULTS: This technique was performed in three cases of hypotony maculopathy with a complex history of medical treatments: a 4-year-old boy with Donnai-Barrow syndrome and previous pars plana vitrectomy that developed hypotony maculopathy the day after Ahmed glaucoma valve insertion and two male patients (69 and 49 years old) that underwent hypotony maculopathy after cyclophotocoagulation as a last option to reduce intraocular pressure. One of the men had three filtering surgeries, two 5-fluorouracil needlings and Ahmed glaucoma valve insertion. The other male patient had keratoplasty and posterior Ahmed glaucoma valve insertion. In the three cases, both hypotony and maculopathy were reversed within a week and a month, respectively, after Ahmed glaucoma valve occlusion with no complications. When hypotony maculopathy develops it seems suitable to occlude completely the Ahmed glaucoma valve tube to swiftly reverse clinical and anatomic changes. CONCLUSION: Intraluminal Ahmed glaucoma valve occlusion with cauterized suture is a simple, quick, reversible, and effective technique that may offer a minimally invasive way to resolve hypotony maculopathy in complex cases and avoid severe loss of vision.


Assuntos
Cauterização/métodos , Implantes para Drenagem de Glaucoma , Degeneração Macular/cirurgia , Hipotensão Ocular/cirurgia , Falha de Prótese/efeitos adversos , Técnicas de Sutura , Idoso , Pré-Escolar , Cirurgia Filtrante , Humanos , Pressão Intraocular/fisiologia , Degeneração Macular/etiologia , Degeneração Macular/fisiopatologia , Masculino , Pessoa de Meia-Idade , Hipotensão Ocular/etiologia , Hipotensão Ocular/fisiopatologia , Implantação de Prótese , Tonometria Ocular , Resultado do Tratamento
12.
Ophthalmologe ; 117(1): 27-35, 2020 Jan.
Artigo em Alemão | MEDLINE | ID: mdl-31073680

RESUMO

BACKGROUND: In ophthalmology data from both eyes of a person are frequently included in statistical analyses. As correlated data are used this procedure contradicts the independency principle for classical statistical tests, such as Student's t­test and analysis of variance (ANOVA). In this tutorial a new possibility is presented in which data from both eyes can be used for statistical analysis. OBJECTIVE: The statistical approach of linear mixed models (LMM) was used to take correlated data of both eyes of patients into account. METHODS: The LMM is available in several statistical software packages, e.g. SPSS and R, and allows the inclusion of measurement data from both eyes of a person in the statistical analysis. The application was tested on data from a biomechanical characterization of the cornea from healthy participants assessed with the dynamic Scheimpflug analyzer (Corvis ST; Oculus, Wetzlar, Germany). RESULTS: A total of 158 eyes from 79 healthy participants were included. A strong correlation between the right and left eyes of the participants could be observed with respect to the analyzed parameters. Comparison of the biomechanical parameters between the different age groups showed that P-values were increased when using the LMM compared to the ANOVA. Older participants (56-79 years) showed a significantly shorter time to the second applanation (P = 0.002), a significantly increased eyeball movement during the deformation (P = 0.001) and a significantly higher stiffness at the first applanation (P = 0.006) compared to younger participants (18-35 years). CONCLUSION: The analysis of measurement data from both eyes using classical statistical tests, without the consideration of the correlation, leads to an overestimation of the statistical power. This can be avoided by implementation of the LMM.


Assuntos
Córnea , Oftalmologia , Alemanha , Humanos , Pressão Intraocular , Tonometria Ocular
13.
Eur J Ophthalmol ; 30(1): 168-174, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30563364

RESUMO

PURPOSE: To report on the clinical presentation and surgical treatment (procedure and outcome(s)) of glaucoma in children with facial port wine stain. MATERIALS AND METHODS: This is a retrospective chart review of children with facial port wine stain referred to Alexandria University paediatric ophthalmology practice from 2005 to 2016. The charts of 22 children (44 eyes) with facial port wine stain were reviewed. The data extracted included demographics, results of ophthalmic examination findings and treatment(s). The main outcome measures were the number of eyes stratified as glaucoma, glaucoma suspects and no glaucoma at the initial and final presentations. RESULTS: The average age of presentation was 18.2 (±33.9) months. After a follow-up of over 16.1 (±24.8) months, there were 34%, 30% and 36% of the study eyes diagnosed as glaucoma, glaucoma suspects and no glaucoma, respectively with mean ± standard deviation of intraocular pressure of 20.6 ± 5.1, 13.6 ± 5.4 and 7.5 ± 1.7 mmHg. The majority (91%) of eyes presenting with glaucoma had clear corneas. In total, 11 eyes were operated upon for glaucoma. The recorded success rate was 91%. Two eyes developed a postoperative exudative choroidal detachment, of which one resolved spontaneously and the other was successfully managed by intravitreal gas injection. CONCLUSION: Glaucoma is a significant ocular hazard in children with facial port wine stain that may not be evident on the initial presentation. The presentation is usually with a clear cornea and surgical intervention is associated with a high success rate and a low rate of complications.


Assuntos
Glaucoma/complicações , Mancha Vinho do Porto/complicações , Síndrome de Sturge-Weber/complicações , Criança , Pré-Escolar , Feminino , Glaucoma/diagnóstico , Glaucoma/cirurgia , Humanos , Lactente , Pressão Intraocular/fisiologia , Injeções Intravítreas , Masculino , Hipertensão Ocular/complicações , Hipertensão Ocular/diagnóstico , Hipertensão Ocular/cirurgia , Período Pós-Operatório , Estudos Retrospectivos , Tonometria Ocular , Trabeculectomia/métodos
14.
Eur J Ophthalmol ; 30(1): NP25-NP28, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30618278

RESUMO

INTRODUCTION: The failure rate of both filtration surgery and of aqueous shunt implantation is higher for iridocorneal endothelial syndrome than in other scenarios, due to the continuous proliferation of abnormal endothelial cells over the trabecular meshwork and the filtration area and also due to the more pronounced cicatrizing response shown by these young patients. We present the first case ever described in the literature of a pregnant patient with iridocorneal endothelial syndrome and uncontrolled ocular hypertension who was implanted an Ex-PRESS mini-shunt. CLINICAL CASE: A 35-year-old female presented with diminution of vision in the left eye for 2 months. She was 20 weeks pregnant. Her visual acuity was 20/20 in right eye and 20/25 in left eye, and intraocular pressure was 11 mmHg in right eye and 34 mmHg in left eye. Slit lamp biomicroscopic examination revealed no alterations in right eye, whereas left eye showed corectopia and uveal ectropion, stroma of iris' sectoral atrophy and moderate corneal epithelial edema. Gonioscopy showed some anterior iris synechiae in left eye. Fundus evaluation was normal. Based on clinical features and examination, the diagnosis of left eye iridocorneal endothelial syndrome with decompensated intraocular pressure was made. She was prescribed topical timolol (0.5%) and dorzolamide. As a result of uncontrolled intraocular pressure and the impossibility to prescribe other hypotensive treatment available due to her being pregnant, it was decided to perform surgery in left eye using an Ex-PRESS mini-shunt and Ologen®; 6 months post surgery, intraocular pressure was 9 mmHg with no need for hypotensive treatment. The cornea was transparent, and the patient maintained her left eye visual acuity. CONCLUSIONS: Ex-PRESS mini-shunt can be considered a surgical option for iridocorneal endothelial syndrome. Its composition allows the ostium to remain open and the device triggers a milder postoperative inflammatory response. In our particular case, taking into account that the subject was a young, phakic, pregnant woman, whose intraocular pressure had to be closely controlled and we had to ensure that her postoperative care included as few drugs and as few reoperations as possible, we thought that using this device was the most appropriate option.


Assuntos
Implantes para Drenagem de Glaucoma , Síndrome Endotelial Iridocorneana/complicações , Hipertensão Ocular/complicações , Hipertensão Ocular/cirurgia , Implantação de Prótese , Adulto , Feminino , Gonioscopia , Humanos , Pressão Intraocular/fisiologia , Síndrome Endotelial Iridocorneana/diagnóstico por imagem , Hipertensão Ocular/fisiopatologia , Gravidez , Distúrbios Pupilares , Tonometria Ocular , Acuidade Visual/fisiologia
15.
Eur J Ophthalmol ; 30(1): 162-167, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30301386

RESUMO

PURPOSE: To analyze the risk factors associated with early and late failure after goniotomy for primary pediatric glaucoma. METHODS: A retrospective study was done on infants who underwent goniotomy as the initial surgical procedure for primary pediatric glaucoma, and had a follow-up period ⩾48 months after surgery. Early and late failures were defined as intraocular pressure ⩾18 mmHg or signs of glaucoma progression before and after the end of first year, respectively. RESULTS: A total of 81 eyes of 47 children were included. The mean age at the time of surgery was 6.1 ± 6.7 months, 34 children (72.3%) were bilateral. The mean follow-up was 5.9 ± 2.8 years. Of the included eyes, 41 eyes (50.6%) showed success, 25 eyes (30.9%) showed an early failure, and 15 eyes (18.5%) showed a late failure. The mean survival time was 43 months. However, only surgery before the end of the first month and positive consanguinity of the parents (P < 0.01 for both) were independent risk factors for early and late failure of goniotomy for primary pediatric glaucoma. Patients with late failure showed a statistically significant lower preoperative intraocular pressure (P = 0.02). A larger preoperative corneal diameter and a male gender were associated with higher but statistically insignificant failure rates. There were no differences in the early or late failure rates between unilateral and bilateral cases. CONCLUSION: A positive consanguinity of the parents and surgery before the end of the first month are the major predictors of failure of goniotomy.


Assuntos
Previsões , Glaucoma/cirurgia , Pressão Intraocular/fisiologia , Complicações Pós-Operatórias/diagnóstico , Trabeculectomia/efeitos adversos , Pré-Escolar , Feminino , Seguimentos , Glaucoma/fisiopatologia , Humanos , Lactente , Recém-Nascido , Masculino , Complicações Pós-Operatórias/etiologia , Estudos Retrospectivos , Fatores de Risco , Tonometria Ocular , Resultado do Tratamento
16.
Eur J Ophthalmol ; 30(1): NP11-NP15, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30328376

RESUMO

PURPOSE: To describe the case and the follow-up of an inadvertently damaged XEN gel implant during needling procedure. METHODS: Case report. RESULTS: A 60-year-old African American patient underwent an uncomplicated combined phacoemulsification with the insertion of a XEN gel implant. Two months postoperatively, a needling procedure was required. During the needling procedure, a fragment of the XEN gel implant was inadvertently damaged. One month postoperatively, the intraocular pressure was still controlled and the bleb was functioning well. CONCLUSION: This case report reveals a previously unreported complication concerning XEN gel implant. It is important for the surgeon to pay attention during needling procedure, especially if there is a subconjunctival hemorrhage impairing the view, to defer the procedure until good visibility exists.


Assuntos
/efeitos adversos , Implantes para Drenagem de Glaucoma , Glaucoma de Ângulo Aberto/cirurgia , Complicações Intraoperatórias , Falha de Prótese/etiologia , Angiofluoresceinografia , Glaucoma de Ângulo Aberto/diagnóstico por imagem , Glaucoma de Ângulo Aberto/fisiopatologia , Gonioscopia , Humanos , Pressão Intraocular/fisiologia , Masculino , Microscopia Acústica , Pessoa de Meia-Idade , Facoemulsificação , Stents , Tomografia de Coerência Óptica , Tonometria Ocular , Resultado do Tratamento
17.
Eur J Ophthalmol ; 30(1): NP16-NP20, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30318913

RESUMO

INTRODUCTION: Primary congenital glaucoma is a rare ocular disorder that is responsible for 0.01%-0.04% of total blindness worldwide.1 The goal of congenital glaucoma management is to allow for proper development of the immature visual system by controlling intraocular pressure. Medical therapy usually provides a supportive role to temporarily reduce intraocular pressure, but patients typically require iridocorneal angle surgery to facilitate aqueous humor outflow. In this report, we describe the use of minimally invasive ab interno Kahook Dual Blade trabeculectomy for treatment of primary congenital glaucoma. CASE DESCRIPTION: A 13-month-old male with bilateral primary congenital glaucoma due to a loss of function TEK mutation. He had bilateral findings of elevated intraocular pressures, buphthalmos, Haab's striae, photophobia, and myopia. Over the course of 6 weeks, three ab interno trabeculectomies with a Kahook Dual Blade were performed in the patient's left eye and one in the patient's right eye. After 3 months, intraocular pressures while receiving pressure reducing ophthalmic drops bilaterally reduced from 43 to 21 mmHg in the right eye after a single surgery and from 44 to 34 mmHg in the left eye after three surgeries, eventually requiring glaucoma drainage implant placement. There were no complications. CONCLUSION: Ab interno Kahook Dual Blade Trabeculectomy is a minimally invasive and potentially successful procedure for the treatment of congenital glaucoma. The safety profile of minimally invasive glaucoma surgery warrants consideration for congenital glaucoma patients, as they usually require iridocorneal angle surgery because pharmacologic therapy is typically inadequate.


Assuntos
Hidroftalmia/cirurgia , Trabeculectomia/métodos , Humanos , Hidroftalmia/fisiopatologia , Lactente , Pressão Intraocular/fisiologia , Masculino , Tonometria Ocular , Trabeculectomia/instrumentação
18.
Curr Opin Ophthalmol ; 31(1): 15-22, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31688225

RESUMO

PURPOSE OF REVIEW: To review the current literature on the relationship between cataract extraction and intraocular pressure (IOP). RECENT FINDINGS: Cataract extraction can be an effective IOP lowering treatment for open and closed angle glaucoma as well as ocular hypertension. In comparative trials studying novel micro-invasive glaucoma surgeries in open angle glaucoma, the control group undergoing cataract extraction alone routinely achieved significant reductions in IOP and medication use postoperatively. Data from the Effectiveness in Angle Closure Glaucoma of Lens Extraction (EAGLE) trials have demonstrated that lens extraction is more effective at lowering IOP than peripheral iridotomy in patients with angle closure and should be considered as first line therapy. Additionally, patients in the ocular hypertension treatment study who underwent cataract extraction over the course of follow-up demonstrated significant IOP lowering sustained over 3 years. SUMMARY: Cataract extraction is an effective method to lower IOP in patients with glaucoma. Pressure lowering is more significant in eyes with narrow angles and those with higher baseline IOP levels. In eyes with angle closure, phacoemulsification alone can lower IOP, but when combined with GSL it may be even more effective. Recent large multicenter randomized trials have further elucidated the benefit of standalone cataract extraction to treat mild to moderate primary open angle glaucoma. Prospective and longitudinal studies that systematically investigate the variables that may influence degree and duration of IOP lowering post cataract extraction are lacking.


Assuntos
Extração de Catarata , Glaucoma/fisiopatologia , Pressão Intraocular/fisiologia , Humanos , Tonometria Ocular
19.
Invest Ophthalmol Vis Sci ; 60(14): 4548-4555, 2019 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-31675072

RESUMO

Purpose: To determine the association of statins, five classes of antihypertensive medications, and proton pump inhibitors with (1) primary open-angle glaucoma (POAG) progression and (2) conversion of POAG suspects to POAG. Methods: We retrospectively investigated the records of a cohort with POAG cases and suspects from the Groningen Longitudinal Glaucoma Study. To quantify visual field (VF) deterioration in cases, we used the rate of progression of the mean deviation (MD). Suspects were considered to have converted at the time point after which two consecutive VF tests for at least one eye were abnormal (glaucoma hemifield test outside normal limits). Progression and conversion were analyzed with quantile and logistic regression, respectively, with the systemic medications as predictors, controlling for age, sex, body mass index, pretreatment IOP, corneal thickness, and baseline MD. The multivariable models were built with and without IOP intervention. Results: No systemic medications were associated with POAG progression in the final IOP/treatment-adjusted or unadjusted model. However, angiotensin II receptor blockers (ARBs) appeared to slow progression in older patients (b = 0.014, P = 0.0001). Angiotensin-converting enzyme inhibitors (ACEIs) were significantly associated with a decrease in POAG suspect conversion in both the IOP/treatment-adjusted and -unadjusted model (odds ratio [OR] 0.23, 95% confidence interval [CI] 0.07-0.79, P = 0.012; OR=0.24, 95% CI 0.07-0.78, P = 0.021, respectively), as were ARBs (OR 0.12, 95% CI 0.01-0.98, P = 0.014; OR 0.11, 95% CI 0.01-0.87, P = 0.005, respectively). Conclusions: No overall association of VF progression with systemic medication was found; ARBs delayed progression in older patients. ACEIs and ARBs were associated with lower risk of suspect conversion. The pathophysiology of this relationship is to be disentangled.


Assuntos
Anti-Hipertensivos/uso terapêutico , Glaucoma de Ângulo Aberto/diagnóstico , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Idoso , Anti-Hipertensivos/efeitos adversos , Progressão da Doença , Feminino , Alemanha , Glaucoma de Ângulo Aberto/induzido quimicamente , Glaucoma de Ângulo Aberto/fisiopatologia , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/efeitos adversos , Pressão Intraocular/efeitos dos fármacos , Pressão Intraocular/fisiologia , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Nível de Efeito Adverso não Observado , Hipertensão Ocular/induzido quimicamente , Hipertensão Ocular/diagnóstico , Hipertensão Ocular/fisiopatologia , Estudos Retrospectivos , Fatores de Risco , Tonometria Ocular , Transtornos da Visão/induzido quimicamente , Transtornos da Visão/diagnóstico , Testes de Campo Visual , Campos Visuais/efeitos dos fármacos , Campos Visuais/fisiologia
20.
Rom J Ophthalmol ; 63(3): 208-216, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31687621

RESUMO

Intraocular pressure (IOP) is known to have a definite circadian rhythm and its fluctuation correlates well with glaucoma progression. Twenty-four hour monitoring of IOP is an important indicator intraocular pressure fluctuation, as well as its peaks and spikes. However, Diurnal variation in IOP is well recognized but many decisions in glaucoma management are taken after one or two IOP measurements. Patient directed self-tonometry can be preformed through the twenty-four cycle, and has been the subject of an ongoing debate. In this review, we studied the history of self-tonometry devices and the present technologies for future. The results of various techniques studied revealed that a standardized method of conducting diurnal variation is yet to be ascertained, and for this, a proper research method is required.


Assuntos
Ritmo Circadiano/fisiologia , Glaucoma/fisiopatologia , Pressão Intraocular/fisiologia , Progressão da Doença , Humanos , Tonometria Ocular/métodos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA