OBJETIVO: Avaliar o efeito da thalamosinusotomia ab interno, que é um procedimento cirúrgico experimental similar a esclerotalamotomia ab interno, na drenagem do humor aquoso. MÉTODOS: Olhos de porco enucleados foram perfundidos com solução fisiológica de Krebs-Ringer e azul de tripan, sob diferentes pressões constantes de perfusão, após o procedimento cirúrgico experimental. A facilidade de drenagem e os tecidos corados/não corados foram medidos. RESULTADOS: A facilidade de drenagem e a área sob a curva (fluxo) aumentaram com o aumento do número […]

PURPOSE: To evaluate intraocular pressure variation due to postural changing of supine to sitting position and, to correlate this variation with visual field defects in primary open angle and normal tension glaucoma patients, as well as normal eyes. METHODS: Thirty-two eyes of 32 POAG patients, 30 eyes of 30 NTG patients and 20 eyes of 20 normal patients were evaluated in the study. Intraocular pressure was measured at 6 o’clock in supine position and 5 minutes after in sitting position […]

PURPOSE: To assess comparatively the central corneal thickness (CCT), the central corneal endothelial cells density (CECD) and mean area (CECAA), of patients who underwent trabeculectomy (Trab) with or without mytomicyn C (MMC). METHODS: Prospective study. Twenty-nine eyes were divided in two groups: Trab with or without MMC. Ultrasonic pachymetry and non-contact specular microscopy were performed pre-operatively and three and six months after Trab. The mean value of the CECD and the low value of the CCT were used. RESULTS: In […]

INTRODUCTION: Congenital cataract is an important cause of poor visual acuity and amblyopia, with an incidence of 0,4%. Surgical approaches in children present many advances through the years, such as intraocular lenses implantation and others thechniques, wich results in better visual outcomes and prevention of amblyopia. PURPOSE: To report the early outcomes of a series of cases submited to different surgical techiniques for pediatric cataract, in the Tadeu Cvintal Ophthalmology Institute, from January 2004 to January 2005. METHODS: Retrospective study […]

Topiramate is a kind of sulfamate-substituted monosaccharide of oral presentation to be used primarily as an anticonvulsant and it doesn’t have structural relation with any other antiepileptic agents. This wide range antiepileptic drug has been used in the management of migraine, depression and neuropathic pain. Since it was approved as an anticonvulsant, many reports related to ophthalmological adverse effects have been published. The pathological findings include secondary angle closure glaucoma, transitory myopia, ocular hyperemia, uveal effusions, with or without mydriasis.

The authors relate an uncommon complication of retinopexy with encircling scleral buckle employing Arruga Suture, that has evolved to scleral erosion and intraocular damage.

Macular edema is the leading cause of poor vision in diabetic patients.The mechanism of edema formation is complex and involves biochemical and structural changes. The authors review and update the physiopathologic concepts related to diabetic maculopathy.