Objective: Some studies have hypothesized that an unfavourable higher order aberrometric profile could act as an amblyogenic mechanism and may be responsible for some amblyopic cases that are refractory to conventional treatment or cases of “idiopathic” amblyopia. This study compared the aberrometric profile in amblyopic children to that of children with normal visual development and compared the aberrometric profile in corrected amblyopic eyes and refractory amblyopic eyes with that of healthy eyes. Methods: Cross-sectional study with three groups of children […]

Objective: To evaluate in experimental animals the changes of the palpebral fissure and the orbital volume after orbital injection of bimatoprost 0.03%. Methods: Two main groups of Wistar rats were analyzed, one after orbital injection of bimatoprost 0.03% and another, a control group, after orbital injection of saline solution. The calculation of the palpebral fissure was done on images by means of computer processing, using the program Image J. After taking photographs, the animals were submitted to bilateral orbital exenteration […]

Purpose: To correlate clinical findings of Vogt-Koyanagi-Harada disease with standardized echography findings in a cross-sectional, descriptive and observational study. Methods: Patients with Vogt-Koyanagi-Harada disease in the convalescent and recurrence phases were evaluated with standardized ocular echography. Eyes with opaque media were excluded. Clinical findings were correlated with echographic data. Results: Thirty-seven eyes of 25 patients were included. Best corrected visual acuity was in average 20/100 (0.70 logMAR). Clinical findings included: sunset glow fundus (92%), pigment migration (92%), nummular chorioretinal depigmented […]

Vitrectomy is a surgery that involves complex and delicate techniques that treat diseases such as macular hole, epiretinal membrane and diabetic macular edema. Chromovitrectomy is one of these techniques and includes the use of coloring agents such as vital dyes or crystals to enhanced visibility of transparent structures during vitrectomy. The aim of this study was to present a modern approach, based on scientific evidence, about the application and indication of vital coloring agents during vitrectomy. The use of such […]

PURPOSE: To evaluate by high frequency ultrasound biomicroscopy (UBM) the anatomical characteristics of viscocanalostomy and their relationship with the intraocular pressure (IOP) lowering. METHODS: A transversal study which included 9 eyes (7 patients) undergoing viscocanalostomy and examined by high frequency UBM (80 MHz). Several UBM variables were evaluated, including the presence of the intrascleral space, the maximum length and height of the intrascleral space and the minimum thickness of residual trabeculo-Descemet membrane (TDM). Surgical success was considered to be achieved […]

OBJECTIVE: To evaluate how much decreases intraocular pressure (IOP) with bimatoprost 0,03%  (Glamigan, Germed, Brazil) in patiens with primary open angle glaucoma (POAG) and ocular hypertension (OH) and possible side effects. Study: Controlled and randomized study. METHODS: There were evaluated 66 eyes of 35 patients with age of 18 years old or more diagnosed with POAG and OH. All the patients had Glamigan® as first drop for treatment used once daily (at night) and 30 days later they had IOP […]

PURPOSE: To compare topographic features of patients with keratoconus between two systems: Orbscan IIz® (Bausch & Lomb, Rochester, New York, USA) and Wavetek Chroma®. METHODS: Twenty-nine patients that were diagnosed with keratoconus based on clinical and topographic characteristics were evaluated on their visit to Ophthalmology Hospital of Sorocaba in March 2010. Topographic variables, like maximum and minimum keratometric readings (Sim K) within 3 and 5 mm of central zone, and maximum keratometry, were analyzed by Orbscan IIz® and Wavetek Chroma®. […]