This paper describes the intraoperative refraction for intraocular lens (IOL) power calculation. Report a case of a 67 year-old male patient reporting a progressive loss of visual acuity in the left eye (OS). Examination revealed best corrected visual acuity (BCVA) of 20/60 (-21,50 -4,00 X 170) related to adherence of silicone oil to the IOL optic. IOL exchange was proposed, however biometry was variable and doubtful. Intraoperative refraction confirmed the IOL power and the patient underwent uneventful IOL explantation and […]

The intraocular lenses have been used in visual rehabilitation after cataract surgery since 1959 with a large success. However, biomaterial changes in the optic zone of these lenses have been described in the last years reducing visual acuity after surgery. This case reveals a significant snowflake opacification of the optic zone of polymethylmethacrylate intraocular lens followed by a discussion about this event and the indication for IOL exchange.

Retinoschisis means abnormal separation of the retinal layers, which could be congenital, acquired or secondary to myopia, trauma or other vascular disorders. We review the clinical features of the x-linked and acquired diseases, and its recent diagnostic tools and the differents options for repair.

Purpose: To determine the effect on human aqueous humor cultures of topical gatifloxacin 0.3% applied four times a day three days before phacoemulsification compared to topical gatifloxaxin 0.3% applied and same-day surgery. METHODS: Thirty-seven patients with cataract without other ocular diseases were randomly assigned to Groups A and B before phacoemulsification. Group A received topical gatifloxacin 0.3% same-day surgery and Group B received gatifloxacin 0.3% four times a day three days before phacoemulsification. After the procedure the aqueous humor was […]

PURPOSE: To evaluate the IOPg (gold standard, Goldmann correlated Intraocular pressure) and IOPcc (corneal compensated Intraocular pressure) in patients prior to and following phacoemulsification with intraocular lens implantation METHODS: This is a prospective study. Thirty six consecutive patients (47 eyes) that underwent phacoemulsification surgery and intraocular lens implantation were enrolled. Full ophthalmologic clinical assessment including Ocular Response Analyzer (ORA, Reichert Ophthalmic Instruments, Buffalo, NY, USA) measurements were performed in all cases prior to surgery (Pre) and at follow-up time points: […]

OBJETIVO: Verificar se a aberrometria ocular total (análise da frente de onda ou ‘wavefront’) possibilita melhora na acuidade visual corrigida (AVc) com lentes esfero-cilíndricas, obtida com a refratometria manifesta em casos de ceratocone com algum grau de intolerância ao uso de lentes de contato. MÉTODOS: Os prontuários de 46 pacientes (89 olhos), referidos com diagnóstico de ceratocone e intolerantes ao uso de lentes de contato, submetidos ao exame de aberrometria ocular total seguido de refração manifesta, foram estudados de forma […]