Radial keratotomy: background and how to manage these patients nowadays.

In this review, we presented the principles of radial keratotomy (RK), its evolution, enhancement, and complications, and strategies to manage the consequences of RK in the present day. It is essential to understand the RK procedure f, the theoretical background that supported this surgery, the current effect on the cornea, and how to approach patients needing vision improvement. These patients are developing cataracts that need to be handled well, from the IOL calculation to the surgical procedure.

Comparison of endothelial cell loss in diabetic patients after conventional phacoemulsification and femtosecond laser-assisted cataract surgery.

Purpose: This study aims to comparatively evaluate the morphological changes of the cornea after phacoemulsification (PHACO) and femtosecond laser-assisted cataract surgery (FLACS) without intercurrences in patients with type 2 diabetes mellitus.

Methods: A total of 95 diabetic patients with moderate cataracts (N2 + and N3+), 47 undergoing PHACO and 48 undergoing FLACS, were selected randomly for the study. Surgeries were performed by a single surgeon between July 2021 and December 2021.

OCT to identify macular changes not clinically detectable in elderly patients with cataract.

Purpose: To demonstrate the importance of optical coherence tomography (OCT) in identifying macular changes not detected at clinical examination preceding cataract surgery in patients older than 60 years.

Setting: Hospital Oftalmológico Visão Laser, Santos, São Paulo, Brazil.

Desing: Prospective case series.

Necrotizing Scleritis and Rheumatoid Arthritis: A Clinical Case Report Supported by A Brief Review with Risk of Bias Analysis.

Introduction: Necrotizing scleritis (NS) presents 30%-40% as having a systemic autoimmune condition.

Objective: To present a clinical case report and a systematic review of necrotizing scleritis with ocular manifestation as the first sign of rheumatologic disease.

Methods: The present study was elaborated according to the rules of CARE.

Vision Quality Questionnaire Assessment in Patients After Topography-Guided Photorefractive Keratectomy for Irregular Astigmatism Secondary to Radial Keratotomy.

Aim: To evaluate the vision-related quality of life with the National Eye Institute Refractive Error Quality of Life (NEI-RQL) questionnaire in patients with astigmatism secondary to radial keratotomy surgery who underwent topography-guided photorefractive keratectomy.

Methods: Prospective non-randomized clinical trial. This study included 15 patients (30 eyes) aged > 21 years, mean age 55.

Anterior scleritis treated with systemic corticosteroids in Chikungunya infection.

Background: Chikungunya is a matter of grave concern in Brazil. This case report describes a rare ocular manifestation in a patient with chikungunya.

Case Report: A 49-year old male diagnosed with chikungunya one month previously was being treated and followed up by a rheumatologist.

A Comparative Study of Laser In Situ Keratomileusis Flaps Created Using Single-Functional Versus Multifunctional Femtosecond Laser for Refractive Surgery.

Purpose: To compare laser in situ keratomileusis flaps created at the programmed target thickness of 120 μm using the LenSx multifunctional and the FS200 single-functional femtosecond lasers as evaluated by anterior segment optical coherence tomography (AS-OCT).

Methods: This was a prospective, comparative, consecutive, blinded, nonrandomized study. Patients with stable refraction for over a year were consecutively allocated to the LenSx group or the FS200 group (n = 66; 33 patients in each group).

Reproducibility of laser in situ keratomileusis flap thickness using a new multifunctional femtosecond laser platform and correlation with clinical preoperative measurements.

Purpose: To analyze the reproducibility of laser in situ keratomileusis (LASIK) flap thickness (target 120 μm) using the multifunctional femtosecond laser (Lensx) and correlate postsurgical measurements with preoperative factors.

Setting: Hospital Oftalmológico Visão Laser, Santos, São Paulo, Brazil.

Design: Prospective case series.

Induction of corneal collagen cross-linking in experimental corneal alkali burns in rabbits.

Objective: To evaluate the effect of riboflavin-ultraviolet-A-induced cross-linking (CXL) following corneal alkali burns in rabbits. Methods: The right corneas and limbi of ten rabbits were burned using a 1N solution of NaOH and the animals were then divided into two groups: a control group submitted to clinical treatment alone and an experimental group that was treated 1 h after injury with CXL, followed by the same clinical treatment as administered to the controls. Clinical parameters were evaluated post-injury at 1, 7, 15, and 30 days by two independent observers.

[Reliability of predictable postoperative visual acuity of cataracts as measured by Heine Lambda 100 retinometer preoperatively].

Purpose: To assess the relationship between potential visual acuity obtained before cataract surgery using Heine Lambda 100 retinometer with best corrected visual acuity 3 months postoperatively, as well as its correlation with the morphological pattern of the dominant cataract and the intensity of nuclear opacification.

Methods: Prospective study executed in the Ophthalmology Hospital Laser Vision in Santos of 121 eyes of 70 patients who underwent cataract surgery (phacoemulsification with intraocular lens implantation), from April to July, 2009. In the preoperative period, Heine retinometer test was performed under mydriasis and its results were compared to postoperative best corrected visual acuity three months after surgery and correlated with the morphological classification of cataracts, being considered a satisfactory result those who did not vary more than two lines in Snellen chart.