Ocular Refractive Errors
Mostrando 1-12 de 14 artigos, teses e dissertações.
-
1. Prevalência de doenças oculares e causas de comprometimento visual em crianças atendidas em um Centro de Referência em Oftalmologia do centro-oeste do Brasil
Objetivo: Identificar os níveis de comprometimento visual e a prevalência de oftalmopatias e ametropias em crianças atendidas em um centro de referência em oftalmologia do centro-oeste brasileiro. Comparar os achados com dados publicados referentes a outras regiões do Brasil. Métodos: Estudo transversal, descritivo e retrospectivo com análise de pr
Rev. bras.oftalmol.. Publicado em: 2014-08
-
2. Childhood eye diseases in southwestern Nigeria: a tertiary hospital study
BACKGROUND: Eye diseases are important cause of medical consultation in children, with the spectrum varying in different localities. This study aimed to determine the spectrum of childhood eye diseases in a tertiary hospital serving rural and semi-rural communities. METHODS: We conducted a retrospective review of all patients less than 15 years old who prese
Clinics. Publicado em: 2009
-
3. Componentes oculares em anisometropia / The ocular components in anisometropia
Objetivo: Em anisométropes, comparar os valores médios individuais dos componentes oculares de ambos os olhos (poder da córnea, profundidade da câmara anterior, poder equivalente do cristalino e comprimento axial), correlacionar as diferenças dos componentes oculares com as diferenças de refração de ambos os olhos; verificar a contribuição total e
Publicado em: 2007
-
4. Image Processing and Analysis for Measuring Ocular Refraction Errors / "Processamento e análise de imagens para medição de vícios de refração ocular"
This work presents a computational system that uses Machine Learning (ML) techniques to assist in ophthalmological diagnosis. The system developed produces objective and automatic measures of ocular refraction errors, namely astigmatism, hypermetropia and myopia from functional images of the human eye acquired with a technique known as Hartmann-Shack (HS), o
Publicado em: 2003
-
5. Sistema de medidas automáticas de vícios de refração ocular. / Automatic measuring system of ocular refractive errors.
The purpose of the present work is the development of an objective and automatic system for ocular refractive errors measurements. Hence, a strong interaction between Physics and Ophthalmology was fundamentally important in order to provide the success of the work four systems have been developed, where three of them are completely different from each other
Publicado em: 1995
-
6. Ocular morbidity in infants of very low birth weight.
In the years 1977-8,258 infants weighing less than 1500 g were born at, or transferred to, the Royal Women's Hospital, Melbourne; 177 (68.5%) survived, and 111 of these attended for an ophthalmic examination. Significant ocular lesions were found in 37 (33%): 21 (19%) children had squint, 19 (17%) had a significant refractive error, 11 (10%) had cicatricial
-
7. Visual disorders associated with cerebral palsy.
School children severely afflicted with cerebral palsy, but unselected in regard to their visual status. have been studied. Of 120 children examined only 24 (20%) had normal eyes or ocular adnexae. Squint was found in 52.5% of the children and significant refractive errors in 50%. There was also a high incidence of strabismic and anisometropic amblyopia (15%
-
8. Survey of ophthalmic conditions in a Labrador community. I. Refractive errors.
Of the 745 available members of the population of Nain in Labrador 650 (87%) were screened for refractive errors and ocular disease. Refraction by retinoscopy was done in 553 and axial length measured by an optical method in 514. The results showed that the incidence of low degrees of myopia was higher in Inuit (Eskimos) and those of Mixed Inuit-Caucasian bl
-
9. Ophthalmic features and visual prognosis in the Treacher-Collins syndrome.
The ocular findings and visual prognosis were reviewed in 24 patients with the Treacher-Collins syndrome who were evaluated in the craniofacial clinic in the Division of Pediatric Ophthalmology at Children's Hospital of Philadelphia between 1980 and 1991. All patients had some abnormality. Vision loss was present in 37% of patients. Amblyopia was present in
-
10. Ocular and vision defects in preschool children.
Ocular and/or vision defects are one of the commonest reasons for the referral of young children to hospital. In a survey of a birth cohort in one health district, 7.1% of children were diagnosed as having such defects by their fifth birthday; 2.1% were detected before the age of 2 years, and 5.1% between 2 and 5 years. Up to the age of 2 years, low birthwei
-
11. The Arden grating test of visual function: a preliminary study of its practicability and application in a rural community in north-west Iran.
In a preliminary study involving 75 normal and 10 abnormal eyes the Arden grating acuity test was assessed under difficult conditions of rural field work. It was found to be adequately sensitive and specific for screening out individuals with visual impairment due to refractive errors or ocular disease, and to distinguish between these. Inexperienced paramed
-
12. Ocular sequelae of preterm birth and their relation to ultrasound evidence of cerebral damage.
The eyes of 177 very preterm (less than 33 weeks' gestation) infants, born between 1979 and 1982 and admitted to a neonatal intensive care unit, were examined as part of an ongoing follow-up study of neurodevelopmental outcome. Ocular pathology was diagnosed in 37 (21%) of the 177 infants: 14 (8%) had retinopathy of prematurity (ROP)--progressive in three--a