Results: 46

Femtosecond laser-assisted anterior lamellar keratoplasty with suboptimal outcomes: a case series

Rev. bras. oftalmol; 80 (6), 2021
ABSTRACT Objective To identify preoperative clinical characteristics of patients undergoing femtosecond laser-assisted anterior lamellar keratoplasty who failed to achieve optimal postoperative visual outcomes. Methods In this single-center, retrospective case series, patients who underwent femtoseco...

Efectividad del implante de lente fáquica ACR-128 tras un año de seguimiento
Effectiveness of an ACR-128 phakic lens implant after one year's follow-up

Introducción: La corrección de ametropías moderadas-severas mediante lentes fáquicas permite conservar la acomodación, además, de obtener una mejor calidad óptica, reversibilidad del procedimiento y la opción de corregir defectos refractivos residuales mediante cirugía corneal mínima invasiva. ...

Impact of different clear corneal incision sizes on anterior corneal aberration for cataract surgery

Arq. bras. oftalmol; 83 (6), 2020
ABSTRACT Purpose: To investigate the impact of different sizes of steep meridian clear corneal incisions for phacoemul sification on anterior corneal higher-order aberrations. Methods: Medical records of patients who underwent 2.2-mm coaxial micro-incision cataract surgery or 2.75-mm coaxial small-inci...

Corneal suture for acute corneal hydrops secondary to post-LASIK ectasia: a case report

Arq. bras. oftalmol; 83 (6), 2020
ABSTRACT Corneal ectasia is one of the main complications of keratorefractive procedures. In this report, we describe a case of corneal ectasia after laser-assisted in situ keratomileusis), which progressed with acute hydrops and aqueous leakage and required a suture for correction....

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...

Centration in refractive surgery

Arq. bras. oftalmol; 83 (1), 2020
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...

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...

Thickness and immunohistochemistry of LASIK flaps created by different femtosecond lasers in eye-bank corneas

Arq. bras. oftalmol; 81 (5), 2018
ABSTRACT Purpose: The aim of this study was to compare the corneal cell viability and thickness of LASIK flaps created by 3 femtosecond lasers in eye-bank human corneas. Methods: Forty-five eye-bank human sclerocorneal buttons (15 corneas in each group) were examined after the creation of 120 mm-thick ...

Anterior segment optical coherence tomography findings in type I Boston keratoprosthesis

Arq. bras. oftalmol; 81 (1), 2018
ABSTRACT Purpose: To report the results of high-resolution anterior segment optical coherence tomography of patients implanted with a type 1 Boston keratoprosthesis (KPro). Methods: The retrospective study cohort included 11 eyes of 11 patients (average age, 58.4 years; range, 34-83 years). All subject...