Ocular Refraction
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Estudo das causas de cegueira e baixa de visão em uma escola para deficientes visuais na cidade de Bauru
RESUMO Objetivo: Analisar as causas de cegueira dos alunos do Lar Escola Santa Luzia Para Cegos no município de Bauru, Estado de São Paulo. ambém avaliamos e discutimos o grau de inserção social dos alunos e a facilidade de acesso à saúde e locomoção dos deficientes visuais. Métodos: Foi realizado estudo prospectivo, qualitativo e quantitativo co
Rev. bras.oftalmol.. Publicado em: 01/07/2019
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2. Comparison between refraction measured by Spot Vision ScreeningTM and subjective clinical refractometry
OBJECTIVE: The purpose of this study was to evaluate the accuracy of Spot Vision ScreeningTM as an autorefractor by comparing refraction measurements to subjective clinical refractometry results in children and adult patients. METHODS: One-hundred and thirty-four eyes of 134 patients were submitted to refractometry by Spot and clinical refractometry under
Clinics. Publicado em: 2016-02
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3. Problemática da correção óptica em escolares: acesso, comparecimento, necessidade e uso de óculos / Optical correction issue in schoolchildren: access, attendance, need and use of spectacles
INTRODUÇÃO: A falta da correção óptica recentemente foi reconhecida como importante causa de baixa visão e parece ser um problema fácil de ser resolvido com o uso de óculos. No entanto, a falta da correção óptica é um problema complexo do seu diagnóstico ao tratamento, envolvendo a procura e alcance da assistência médica, além da confecção
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/08/2011
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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
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5. Family Studies on Ocular Refraction and Its Components
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6. Statistical Note on the Components of Ocular Refraction in Twins
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7. Pre- and postoperative refraction after cataract extraction with implantation of standard power IOL.
The pre- and postoperative refraction results are reported in 99 patients receiving an anterior chamber lens of standard 19.0 D power after intracapsular cataract extraction. The mean refraction after the operation was -0.76 D, SD 2.13. Apart from eight patients with suspected lenticular myopia, 5% of the patients ended up with a refraction that differed mor
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8. Experimental myopia in a diurnal mammal (Sciurus carolinensis) with no accommodative ability.
1. We examined the functional morphology of the intra-ocular muscles of the grey squirrel using pharmacological and histological methods. Using sympathomimetic (phenylephrine) and parasympathomimetic (carbachol) agents, administered by transcorneal iontophoresis, the response of the iris sphincter and dilator muscles and the ciliary muscle were recorded. Mea
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9. A longitudinal study of children with a family history of strabismus: factors determining the incidence of strabismus.
A longitudinal study of ocular refraction, position, and fixation was performed in children with a family history of strabismus. The children were examined at regular intervals between 3 months and 4 years of age, and the results are discussed in terms of changes in refraction between different ages and correlations between refraction and development of stra
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10. Ocular effects of acute hyperglycaemia.
Intraocular pressure and levels of glucose in plasma were recorded during a standard glucose tolerance test for 54 patients with chronic simple or low-tension glaucoma, and osmolality in plasma was also recorded for 12 patients. Significant correlations between the rates of change of these variables were not obtained, but the overall response of intraocular
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11. 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
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12. Pseudophakic accommodation? A study of the stability of capsular bag supported, one piece, rigid tripod, or soft flexible implants.
A group of pseudophakic patients was investigated to determine whether their implants shift along an anteroposterior axis under different conditions of ciliary muscle stimulation. There was no statistically significant change in refraction after either pilocarpine or cyclopentolate administration. A change in anterior chamber depth between the position after