Results: 76

Cambios corneales producidos por la cirugía refractiva con excimer láser: revisión de tema

Med. UIS; 30 (1), 2017
RESUMEN El auge de la cirugía refractiva con excimer láser en las últimas dos décadas se ha reflejado en que un grupo creciente de pacientes con antecedente de este procedimiento necesitan ahora cirugía de catarata. Debido a las modificaciones generadas en la córnea por la fotoablación con el lás...

Evaluation of anterior segment parameters using Scheimpflug technology during the Valsalva maneuver in patients with keratoconus

Arq. bras. oftalmol; 79 (6), 2016
ABSTRACT Purpose: This study aimed to explore the effects of the Valsalva maneuver (VM) on ectatic corneas during anterior segment tomography scans using a Scheimpflug camera. Methods: This prospective observational study included 100 eyes of 50 patients with bilateral keratoconus (KC). Anterior segmen...

Corneal structure in tilted disc syndrome

Arq. bras. oftalmol; 79 (5), 2016
ABSTRACT Purpose: To evaluate the central corneal thickness (CCT), corneal volume (CV), and anterior and posterior corneal surfaces using the Scheimpflug imaging system in patients diagnosed with tilted disc syndrome (TDS). Methods: The study group (Group 1) and the control group (Group 2) comprised 35...

Differentiation of mild keratoconus from corneal warpage according to topographic inferior steepening based on corneal tomography data

Arq. bras. oftalmol; 79 (4), 2016
ABSTRACT We report two cases of suspicious asymmetric bow tie and inferior steepening on topographic evaluations with reflection (Placido) and projection (Scheimpflug). Rotating Scheimpflug corneal and anterior segment tomography (Oculus Pentacam HR, Wetzlar, Germany)® was performed in the first case, w...

Factors affecting visual acuity after accelerated crosslinking in patients with progressive keratoconus

Arq. bras. oftalmol; 79 (3), 2016
ABSTRACT Purpose: The present study aimed to report the outcomes of patients with progressive keratoconus who were treated via accelerated crosslinking (CXL) 6 months earlier and to determine the factors that promoted improved visual acuity after treatment. Methods: This retrospective study included 35...

Six-month outcomes of corneal crosslinking with dextran-free isotonic riboflavin solution

Arq. bras. oftalmol; 79 (3), 2016
ABSTRACT Purpose: To analyze the short-term clinical and topographic outcomes in patients with keratoconus after corneal collagen cross-linking treatment (CXL) with dextran-free isotonic riboflavin solution. Methods: In this retrospective case series, 26 eyes from 26 patients with keratoconus were stud...

Descriptive analysis of the type and design of contact lenses fitted according to keratoconus severity and morphology

Arq. bras. oftalmol; 79 (2), 2016
ABSTRACT Purpose: Keratoconus is characterized by bilateral asymmetrical corneal ectasia that leads to inferior stromal thinning and corneal protrusion. There is currently a lack of consensus regarding the most efficacious method for fitting contact lenses in patients with keratoconus, given the various...

Aplicações clínicas do princípio de Scheimpflug na Oftalmologia

Rev. bras. oftalmol; 75 (2), 2016
RESUMO Este artigo apresenta uma revisão dos princípios e das aplicações clínicas do princípio de Scheimpflug na área da imagiologia do segmento anterior. Ao disponibilizar uma imagem tridimensional do segmento anterior, esta tecnologia permite a caraterização da elevação e curvatura das super...

Perfil paquimétrico horizontal para a detecção do ceratocone

Rev. bras. oftalmol; 74 (6), 2015
RESUMO Objetivo: Avaliar a capacidade de dados de perfil paquimétrico horizontal, a fim de distinguir o ceratocone de córneas normais, e comparar a precisão de índices com outros tomográficos mais complexos. Métodos: Em um estudo retrospectivo, um olho selecionado aleatoriamente de 225 pacientes co...

Caracterización clínica y epidemiológica del queratocono
Clinical and epidemiological characterization of keratoconus

Rev. cuba. oftalmol; 27 (4), 2014
OBJETIVO: describir las características clínicas y epidemiológicas del queratocono en el Instituto Cubano de Oftalmología "Ramón Pando Ferrer". MÉTODOS: se realizó un estudio descriptivo en 72 pacientes (128 ojos) con queratocono, atendidos entre enero y diciembre de 2012, para identificar las enf...