Results: 30

Comparação entre os resultados do implante de um segmento de arco longo versus dois segmentos de arco tradicional no tratamento de pacientes com ceratocone

Rev. bras. oftalmol; 82 (), 2023
RESUMO Objetivo: Analisar retrospectivamente as alterações na ceratometria e no astigmatismo corneano obtidas após cirurgia de implante de anel intraestromal, comparando o uso de um segmento de arco longo versus o implante de dois segmentos de comprimento de arco tradicional. Métodos: A partir de u...

Influência da espessura dos segmentos de anel corneano na correção do astigmatismo ceratométrico em pacientes com ceratocone

Rev. bras. oftalmol; 80 (6), 2021
RESUMO Objetivo: Avaliar retrospectivamente a influência da espessura do anel intracorneano na redução do astigmatismo corneano em pacientes portadores de ceratocone. Métodos: De um banco de dados com 2.033 olhos submetidos à cirurgia de implante de anel corneano, foi selecionada uma amostra de 90...

Aplanamento corneano após DMEK associado a facoemulsificação em paciente com distrofia endotelial de Fuchs, ceratocone e catarata

Rev. bras. oftalmol; 79 (5), 2020
Resumo Descrição de relato de caso de paciente com ceratocone (KC), Distrofia Endotelial de Fuchs (DEF) e catarata concomitantes com descompensação corneana submetido a Ceratoplastia Lamelar Posterior pela técnica Descemet's Membrane Endothelial Keratoplasty (DMEK) associado a facoemulsificação co...

A theoretical model for graft punch size calculations to prevent Descemets membrane folds following deep anterior lamellar keratoplasty

Arq. bras. oftalmol; 83 (5), 2020
ABSTRACT Purpose: The length of Descemet's membrane and donor graft sizes in deep anterior lamellar keratoplasty do not match in very steep corneas, which can lead to Descemet's membrane folds. The aim of this study is to establish a theoretical model for graft size calculations for deep anterior lamell...

Queratoplastia penetrante con fines ópticos. Presentación de cuatro casos
Penetrating keratoplasty with optical aims. Presentation of four cases

Rev. medica electron; 42 (3), 2020
RESUMEN La queratoplastia penetrante ha sido el procedimiento empleado, de forma casi universal, para el tratamiento de las patologías corneales que afectan de forma irreversible a la visión. Se reportaron 4 casos clínicos de pacientes con afecciones corneales con compromiso visual severo, dado por vi...

Biomechanics in DALK: Big bubble vs manual lamellar dissection

Arq. bras. oftalmol; 83 (2), 2020
ABSTRACT Purpose: The present study's aim was to compare the biomechanical properties of corneal tissue in patients who underwent deep anterior lamellar keratoplasty (DALK) surgery, with successful big bubble formation and manual lamellar dissection, during failed big bubble formation. Methods: This re...

Refractive and visual outcomes after Ferrara corneal ring segment implantation at a 60% depth in keratoconic eyes: case series

Arq. bras. oftalmol; 82 (6), 2019
ABSTRACT Purpose: This report addresses refractive, topographic, visual acuity, and optical coherence tomography outcomes 12 months after femtosecond, laser-assisted insertion of Ferrara intrastromal corneal ring segments in keratoconic eyes at a depth of 60%. Methods: Interventional, prospective, non-...

Effect of accelerated corneal crosslinking on ocular response analyzer waveform-derived parameters in progressive keratoconus

Arq. bras. oftalmol; 82 (1), 2019
ABSTRACT Purpose: To evaluate the effect of accelerated corneal crosslinking on corneal biomechanics with an ocular response analyzer in patients with progressive keratoconus. Methods: In this retrospective study, 50 eyes of 45 patients with progressive keratoconus who underwent accelerated corneal cro...

Effect of the bioprotectant agent trehalose on corneal epithelial healing after corneal cross-linking for keratoconus

Arq. bras. oftalmol; 81 (6), 2018
ABSTRACT Purpose: This study aimed to compare the effectiveness of eye drops containing a combination of sodium hyaluronate and trehalose and sodium hyaluronate for the treatment of corneal cross-linking and epithelial healing. Methods: This study included 46 eyes of 23 keratoconus patients who underwe...