Causes of congenital corneal opacities and their management in a tertiary care center
Conclusion: Peters anomaly is the most common cause of congenital corneal opacities encountered at our institution. Penetrati ng keratoplasty is the most frequent choice of corneal surgery to treat congenital corneal opacities. Additional interventions during penetrating keratoplasty were moderately positively correlated with graft failure. This study also shows the rates of some etiologies of that changed over the recent decades in our tertiary care Cornea Service. Although Peters anomaly remains the most common presenting reason for congenital corneal opacities, its rate appears to be increasing over the recent decade. ...
Source: Arquivos Brasileiros de Oftalmologia - March 9, 2020 Category: Opthalmology Source Type: research

Corneal differences between healthy and subclinical patients assessed using two diferente corneal tomographers
Conclusion: The findings of this study identify the differences between normal and subclinical keratoconus eyes at the minimum curvature of the front surface, maximum curvature of the front surface, frontal corneal surface best-fit spherical radius of curvature, back corneal surface best-fit spherical radius of curvature, Anterior Diff value, and Posterior Diff value measures using Orbscan II and Pentacam that can help eye care practitioners clinically diagnose subclinical keratoconus.RESUMO Objetivo: Analisar os índices subclínicos de to pografia de ceratocone utilizando as medidas feitas com Pentacam e com Orbscan-II ...
Source: Arquivos Brasileiros de Oftalmologia - March 9, 2020 Category: Opthalmology Source Type: research

Biomechanics in DALK: Big bubble vs manual lamellar dissection
Conclusions: The corneal hysteresis and corneal resistance factor values were similar in big bubble and manual lamellar dissection after DALK. Thus, manual lamellar dissection was not a disadvantage considering the cornea ’ s biomechanical properties.RESUMO Objetivo: O objetivo do estudo foi comparar pa r âmetros biomecânicos corneanos de pacientes com cirurgia de ceratoplastia lamelar anterior profunda com formação bem-sucedida de bolha e dissecção lamelar manual, frente à falha de formação da grande bolha. Métodos: Este estudo comparativo retrospectivo incluiu 60 olhos de 60 pacientes c om ceratocone subm...
Source: Arquivos Brasileiros de Oftalmologia - March 9, 2020 Category: Opthalmology Source Type: research

Survival analysis (Kaplan-Meier curves): a method to predict the future
(Source: Arquivos Brasileiros de Oftalmologia)
Source: Arquivos Brasileiros de Oftalmologia - March 9, 2020 Category: Opthalmology Source Type: research

Centration in refractive surgery
ABSTRACT The point of centration for refractive surgery is a theme of great importance that generates considerable discussion among specialists and surgeons in the field. Notably, any changes in light can alter the size of the pupil, and the visual axis of the fixation line to the fovea is unique in each patient. A variety of options have been described in the literature with respect to centration in refractive surgery, and the results differ among these methods. No consensus has been established regarding the ideal refractive surgery technique for evaluation of centration in each patient that will yield a satisfactory sur...
Source: Arquivos Brasileiros de Oftalmologia - February 27, 2020 Category: Opthalmology Source Type: research

Unilateral intravitreal dexamethasone implant for diabetic macular edema: effect in the contralateral eye
We describe three patients who had previous heart diseases and nonproliferative diabetic retinopathy with clinically significant diabetic macular edema. They underwent unilateral dexamethasone intravitreal implantation. Without ophthalmological treatment in the fellow eye, patients showed marked bilateral improvement in best-corrected visual acuity, optical coherence images, and macular thickness values. These findings provide evidence of the bilateral effect of dexamethasone intravitreal implantation, which may be clinically useful in patients for whom the systemic effects of the drug may affect their general health.RESUM...
Source: Arquivos Brasileiros de Oftalmologia - February 27, 2020 Category: Opthalmology Source Type: research

Inverted internal limiting membrane flap for the management of optic disc pit maculopathy
ABSTRACT Optic disc pit is a rare congenital anomaly that can cause serous macular detachment. It has no universally accepted single treatment. Recently, several investigators have performed new procedures to directly seal the pit. Herein, we report a case showing a promising method for optic pit maculopathy surgical treatment. We created an inverted internal limiting membrane flap and fold it over the pit to promote barrier in order to stop further fluid accumulation. Gradual absorption of subretinal fluid was observed over 12 months of follow-up. Optical coherence tomography can demonstrate internal limiting membrane fol...
Source: Arquivos Brasileiros de Oftalmologia - February 27, 2020 Category: Opthalmology Source Type: research

Post-laser in situ keratomileusis interface Arthrographis kalrae keratitis
We describe a case of keratomycosis caused by Arthographis kalrae after excimer laser keratomileusis. A 38-year-old female developed stromal keratitis eight weeks after refractive surgery. She developed severe corneal stromal infiltration and mild anterior segment inflammation, which could not be treated with topical voriconazole 1%, but topical natamycin 5% ameliorated her condition. A reactivation of keratomycosis symptoms was observed; therefore, longer treatment was administered to the patient. It has been reported that A. kalrae keratomycosis is associated with exposure to soil and contact lens usage. However, the pat...
Source: Arquivos Brasileiros de Oftalmologia - February 27, 2020 Category: Opthalmology Source Type: research

An innovative proposal for anophthalmic cavity reconstruction surgery with bone cement: a case report
We present a patient who underwent evisceration surgery after spontaneous rupture of the ocular globe due to long-data uncontrolled glaucoma, with posterior placement of an orbital implant made of a bone cement compound based on polymethylmethacrylate as alternative materials were not available. Such a compound is characterized by excellent biocompatibility and low cost, which makes it an interesting alternative for treatment. The anophthalmic socket was successfully filled, providing proper esthetic results and favorable conditions for the posterior scleral prosthesis implantation. No complications were observed during 10...
Source: Arquivos Brasileiros de Oftalmologia - February 27, 2020 Category: Opthalmology Source Type: research

Incidence of cystoid macular edema following routine cataract surgery using NSAIDs alone or with corticosteroids
Conclusions: Post-cataract surgery cystoid macular edema developed less frequently following topical non-steroidal anti-inflammatory drugs regimen compared to the other therapies evaluated. Bromfenac, without corticosteroids, achieved lower rates of cystoid macular edema vs. various combinations of non-ste ­roidal anti-inflammatory drugs with corticosteroids.RESUMO Objetivo: Avaliar a taxa de desenvolvimento do edema macular cist óide em pacientes submetidos à cirurgia de catarata em quatro esquemas terapêuticos diferentes. Métodos: O presente estudo é uma análise retrospectiva de 5.380 olhos após facoemulsificaÃ...
Source: Arquivos Brasileiros de Oftalmologia - February 27, 2020 Category: Opthalmology Source Type: research

Cost-effectiveness of Anti-VEGF treatments for age-related macular degeneration: a Brazilian perspective
Conclusions: From the Brazilian SUS perspective, bevacizumab is more cost-effective than ranibizumab for the treatment of neovascular age-related macular degeneration. Its use could allow potential annual savings in health budget.RESUMO Objetivo: Estudar o custo-efetividade do ranibizumabe e bevacizumabe no tratamento da degenera ção macular relacionada à idade neovascular. Métodos: Utilizamos um modelo de árvore de decisão para analisar a relação custo-efetividade do ranibizumabe e bevacizumabe no tratamento da degeneração macular relacionada à idade, sob a perspectiva do Sistema Único de Saúde. O ranibizum...
Source: Arquivos Brasileiros de Oftalmologia - February 27, 2020 Category: Opthalmology Source Type: research

Anterior chamber depth and axial length affect clinical performance of Spot Vision Screener
Conclusion: The Spot Vision Screener has moderate sensitivity and high specificity, using the criteria of the American Association for Pediatric Ophthalmology and Strabismus. The anterior chamber depth and axial length affect the Spot Vision results.RESUMO Objetivo: O objetivo deste estudo foi avaliar o efeito da profundidade da c âmara anterior e do comprimento axial sobre o desempenho clínico do Spot Vision Screener, na deteção de fatores de risco para a ambliopia em crianças de 3 a 10 anos de idade. Métodos: Um total de 300 olhos de 150 pacientes de 3-10 anos de idade foram prospectivamente testados com o Spot V...
Source: Arquivos Brasileiros de Oftalmologia - February 27, 2020 Category: Opthalmology Source Type: research

Fifteen years of experience with frontalis suspension using polytetrafluoroethylene (Gore-Tex®) suture in blepharoptosis repair
Conclusion: The use of polytetrafluoroethylene in frontalis suspension surgery was shown to be predictable, safe, and lasting. Our findings support previous studies th at have shown adequate functional results and low complication rates.RESUMO Objetivo: Revisar os resultados de cirurgias de sus pens ão ao músculo frontal com o uso de fio de politetrafluoretileno em pacientes com blefaroptose. Métodos: Em um estudo observacional retrospectivo, foram analisados os resultados das cirurgias de músculo frontal de uma instituição, realizadas entre 2003 e 2018. Todos os procedimentos foram real izados com incisão fechada...
Source: Arquivos Brasileiros de Oftalmologia - February 27, 2020 Category: Opthalmology Source Type: research

Prosthesis-socket volume imbalance and dermofat graft rehabilitation in patients with an anophthalmic socket
Conclusion: The use of dermofat grafts to correct anophthalmic socket problems caused by orbital volume deficits or volume displacements is an effective, reliable, and reproducible surgical method.RESUMO Objetivos: Identificar os problemas causados pelo desequil íbrio do volume da cavidade da prótese em cavidades anoftálmicas, e avaliar a reabilitação com enxerto de dermofato como solução. Métodos: Revisamos retrospectivamente os prontuários de pacientes operados em nossa clínica (entre maio de 2011 e junho de 2016) com enxertos de dermofato para tratar problemas relacionados a cavidades anoftálmicas. Durante...
Source: Arquivos Brasileiros de Oftalmologia - February 27, 2020 Category: Opthalmology Source Type: research

Upper eyelid contour symmetry measurement with Bézier curves
Conclusions: The upper eyelid contour is highly symmetrical. Bézier lines allow a quick and fast quantification of the lid contour, with a mean inter-observer variability of 3.9%.RESUMO Objetivo: O objetivo do presente estudo é mensurar a simetria interocular do contorno da pálpebra superior por meio de um novo método de quantificação de contorno palpebral com curvas de Bézier. Métodos: A ferramenta de curva de Bézier do software ImageJ foi utilizada para extrair os contornos palpebrais direito e esquerdo de 75 sujeitos normais. A variabilidade interobservador de 29 contornos palpebrais do olho direito obtidos p...
Source: Arquivos Brasileiros de Oftalmologia - February 27, 2020 Category: Opthalmology Source Type: research