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      Comparative study of visual functions in premature pre-school children with and without retinopathy of prematurity Translated title: Estudo comparativo das funções visuais em pré-escolares nascidos prematuros com e sem retinopatia da prematuridade

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          Abstract

          Purpose: Observe whether there are differences in visual functions among premature infants with treated retinopathy of prematurity (ROP) in relation to preterm infants with ROP and spontaneous regression; and among these two groups with ROP and the control group without ROP. Methods: Crosssectional observational no blind study. Premature infants were born between 06/199206/2006 and were exam between 06/200912/2010; registered in data of Hospital de Olhos Sandalla Amin Ghanem; with gestational age less than or equal to 32 weeks and 1,599 g born weigh; without ROP and ROP stages II or III, in one of the eyes, with spontaneous regression or with treatment; at least three visits during the selection period at maximum 6 months in the first exam and minimum 4 years of age in reassessment (chronological age) were include. Premature that did not respond or were not located for reassessment and those that did not have conditions to do the exams were exclude. Study's groups: G1 ROP posttreatment; G2ROP postspontaneous regression; G3 without ROP (control). Visual function evaluated with visual acuity (VA), contrast sensitivity test (CST), color test (CT), eye movement, stereopsis. Results: Overall, there were 24 premature infants and 48 eyes. Normal VA: 64.28% (G1), 87.5% (G2) and 100% (G3); Normal CST: 66.67% (G1), 100% (G2) and 55.56% (G3); Normal Ishihara CT: 100% (G1 and G2) and 86% (G3); Normal Farnsworth CT: 20% (G1), 75% (G2) and 50% (G3). Normal stereoacuity: 0.00% (G1); 25% (G2) and 3.5% (G3). Strabismus: 37% (G2), 0.00% (G1 and G3). The prevalent tendency for lower response in CST and CT between the premature children in group G3 and Farnsworth color test in G1 is a curious result of this work and more study is necessary about these visual functions in older premature children. Conclusion: The visual functions showed no statistically significant difference among the groups studied.

          Translated abstract

          Objetivo: Observar se há diferença nas funções visuais entre os prematuros com retinopatia da prematuridade (ROP) pós-tratamento em relação aos prematuros com retinopatia da prematuridade pós-regressão espontânea. E entre cada um destes grupos com o controle sem ROP. Métodos: Estudo transversal, observacional, não cego. Incluídas crianças prematuras nascidas entre 06/1992-06/2006 e examinadas entre 06/2009 e 12/2010; idade gestacional menor ou igual a 32 semanas e peso ao nascimento menor ou igual a 1.599 g; cadastrados no banco de dados do Hospital de Olhos Sandalla Amin Ghanem; com diagnóstico de retinopatia estágio II ou III em pelo menos um dos olhos com regressão espontânea ou por tratamento da ROP e sem retinopatia da prematuridade; mínimo de três consultas no período de seleção; máximo de seis meses de idade cronológica para o primeiro exame no HOSAG; idade cronológica mínima de quatro anos no período da reavaliação. Foram excluídas crianças prematuras que não responderam ou não foram localizados para os exames de reavaliação; e que não ofereciam condições de realização dos exames, por apresentarem comprometimento severo do sistema nervoso central ou síndromes impeditivas. Os prematuros foram divididos em três grupos: G1- prematuros com ROP pós-tratamento; G2- com ROP pós-regressão espontânea; e G3- sem ROP. Função visual avaliada por meio da acuidade visual (AV), teste de sensibilidade ao contrate (TSC), teste de cores (TC), exame de motricidade ocular e estereopsia. Resultados: Foram examinados 24 prematuros (48 olhos). No grupo G1 formado por 7 prematuros; G2, 8 prematuros e G3, 9 prematuros. AV normal: 64,28% (G1), 87,5% (G2) e 100% (G3); TSC normal: 66,67% (G1), 100% (G2) e 55,56% (G3); TC de Ishihara normal, 100% (G1 e G2) e 86% (G3); TC de Farnsworth normal: 20% (G1), 75% (G2) e 50% (G3). Estereopsia normal: 0,00% (G1), 25% (G2) e 3,5% (G3). Estrabismo: 37% (G2), 0,00% (G1 e G3). A prevalente tendência de respostas abaixo do esperado no TSC e TC entre os prematuros do grupo G3 exige novos estudos sobre o assunto em prematuros com maior idade. Conclusão: As funções visuais não apresentaram diferença entre os três grupos de prematuros estudados.

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          Most cited references29

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          An international classification of retinopathy of prematurity. The Committee for the Classification of Retinopathy of Prematurity.

          (1984)
          Because of modern life-support systems capable of keeping tiny premature infants alive, retinopathy of prematurity has recurred. No classification system currently available adequately describes the observations of the disease being made today. A new classification system, the work of 23 ophthalmologists from 11 countries, is presented in an attempt to meet this need. It emphasizes the location and the extent of the disease in the retina as well as its stages. The term "plus" is employed with the stage to denote progressive vascular incompetence. A computer-compatible diagram for recording the results of the examination employing the new classification system is furnished.
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            An international classification of retinopathy of prematurity. II. The classification of retinal detachment. The International Committee for the Classification of the Late Stages of Retinopathy of Prematurity.

            (1987)
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              Extreme prematurity and fibroblastic overgrowth of persistent vascular sheath behind each crystalline lens

              TL Terry (1942)
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                abo
                Arquivos Brasileiros de Oftalmologia
                Arq. Bras. Oftalmol.
                Conselho Brasileiro de Oftalmologia (São Paulo )
                1678-2925
                January 2014
                : 77
                : 1
                : 34-39
                Affiliations
                [1 ] Hospital de Olhos Sadalla Amin Ghanem Brazil
                [2 ] UNIMED
                [3 ] Universidade Federal do Paraná Brazil
                [4 ] Hospital de Olhos do Paraná Brazil
                [5 ] Hospital de Olhos Sadalla Amin Ghanem Brazil
                Article
                S0004-27492014000100034
                10.5935/0004-2749.20140010
                90d5bb2a-104f-4fd9-a52b-9424ab3a26c9

                http://creativecommons.org/licenses/by/4.0/

                History
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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0004-2749&lng=en
                Categories
                OPHTHALMOLOGY

                Ophthalmology & Optometry
                Infant, premature,Infant, premature, diseases,Retinopathy of prematurity,Visual acuity,Child, preschool,Prematuro,Doenças do prematuro,Retinopatia da prematuridade,Acuidade visual,Pré-escolar

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