Spectrophotometric Analysis of Different Polymethyl Methacrylate Filters and their Importance in the Implantation of Corneal Rings.

Purpose: This study evaluated the luminous behavior applied to materials used in intraocular surgeries.

Methods: Discs of the different products were delivered in 19.00 mm × 3.

Ocular manifestations of monkeypox: a case report.

Monkeypox disease is a viral zoonosis with symptoms similar to those seen in the past in smallpox (variola), although clinically less severe. Following the eradication of smallpox in 1980 and the subsequent cessation of smallpox vaccination, monkeypox has emerged as the most important orthopoxvirus from a public health standpoint. Monkeypox virus occurs primarily in central and western Africa, often in tropical forests, and has increasingly manifested in urban areas.

Ultrasound biomicroscopy after palliative surgical procedures for bullous keratopathy: a descriptive comparative study.

Purpose: To describe quantitative and qualitative features of eyes with advanced bullous keratopathy assessed using ultrasound biomicroscopy, before and after anterior stromal puncture (ASP) or amniotic membrane transplantation (AMT) procedures to relieve chronic pain.

Methods: The present descriptive comparative study included 40 eyes of 40 patients with chronic intermittent pain due to bullous keratopathy who were randomly assigned to one of the two treatments (AMT or ASP). Ultrasound biomicroscopy (Humphrey, UBM 840, 50 MHz transducer, immersion technique) was used, and a questionnaire about pain intensity was completed preoperatively and postoperatively at days 90 and 180, respectively.

Amniotic membrane transplantation versus anterior stromal puncture in bullous keratopathy: a comparative study.

Purpose: To compare amniotic membrane transplantation (AMT) and anterior stromal puncture (ASP) in the management of pain in patients with symptomatic bullous keratopathy (BK).

Methods: In this prospective comparative study, 40 eyes of 40 patients with symptomatic BK (chronic intermittent pain) were randomised and divided into two groups (AMT and ASP) according to the technique used to treat symptomatic BK. The patients were examined on days 1, 14, 30, 90 and 180 postoperatively.

Indications of optical coherence tomography in keratoplasties: literature review.

Optical coherence tomography (OCT) of the anterior segment, in particular corneal OCT, has become a reliable tool for the cornea specialist, as it provides the acquisition of digital images at high resolution with a noncontact technology. In penetrating or lamellar keratoplasties, OCT can be used to assess central corneal thickness and pachymetry maps, as well as precise measurements of deep stromal opacities, thereby guiding the surgeon to choose the best treatment option. OCT has also been used to evaluate the keratoplasty postoperative period, for early identification of possible complications, such as secondary glaucoma or donor disc detachments in endothelial keratoplasties.

Impression cytology findings in bullous keratopathy.

Aim: To evaluate, by impression cytology (IC), the cytological features of the central area of corneal epithelial surface of patients with symptomatic bullous keratopathy (BK). Design Cross-sectional observational case series.

Methods: IC of the central cornea was performed in 72 eyes of 72 patients with symptomatic BK between June 2005 and December 2006.