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BACKGROUND This paper reports population-based data on the prevalence and causes of visual impairment among children and adults in Botucatu, Brazil. METHODS A population-based cross-sectional study was conducted involving a random start point and then systematic sampling of an urban Brazilian population in the city of Botucatu. There were approximately(More)
In this paper we deal with the problem of feature selection by introducing a new approach based on Gravitational Search Algorithm (GSA). The proposed algorithm combines the optimization behavior of GSA together with the speed of Optimum-Path Forest (OPF) classifier in order to provide a fast and accurate framework for feature selection. Experiments on(More)
OBJECTIVE Assess the occurrence of secondary brow ptosis after upper lid blepharoplasty. METHODS Forty-five individuals (n = 90 brows) submitted to upper lid blepharoplasty, were assessed by means of a comparative analysis using pre- and post-operatively digital photographs, in the primary position of the eye. The images were processed using ImageJ(More)
PURPOSE To investigate the dynamics of ocular eyelid movements in newborn infants and preschool-age children. METHODS Fifty newborn infants and 200 preschool children aged 4-6 years were examined. Images of each child, with his or her eyes in the primary eye position looking at an object placed at the child's height, were recorded with a digital(More)
PURPOSE Spontaneous eye blink activity in the primary eye position and its relationship to age and gender were assessed using digital image processing techniques to quantify blink opening and closing time. METHODS One hundred-and-eighty healthy volunteers (90 males and 90 females), divided into the age groups 0-3, 4-12, 13-20, 21-40, 41-60 and > or = 60(More)
BACKGROUND The World Health Organization (WHO) definitions of blindness and visual impairment are widely based on best-corrected visual acuity excluding uncorrected refractive errors (URE) as a visual impairment cause. Recently, URE was included as a cause of visual impairment, thus emphasizing the burden of visual impairment due to refractive error (RE)(More)
PURPOSE To evaluate the characteristics of the essential blepharospasm and hemifacial spasm patients and the feasible treatment with botulinum toxin A. METHODS Thirty-four essential blepharospasm or hemifacial spasm patients were evaluated according to gender, ocular complaint, time of disease, treatment outcome and complications. RESULTS Age median was(More)
OBJECTIVES Quantitative evaluation of palpebral dimensions of Japanese residents in Japan and Japanese descendant (Nikkeis) who live in Brazil, in order to define if environmental factors may influence these parameters. METHODS A prospective study evaluating 107 Nikkeis from Brazil and 114 Japanese residents in Japan, aged 20 years or older. Exclusion(More)
&Qg& our aim w89 to eEtimate the effect of the treatment of fungal canalicolitis, according to Dj.Anguelov, 1982. Ms(bob. Ihe method wan applied on three female patients a@@ 46, 57 and 76 yearn, with &ration of the diseaw 1.5, 2 and 3 year& respectively. The treabmmt conaiated of the following procechres: Local topical wd intra-catmlicul aowathesia Diltion(More)