Predictive factors for the perceptual learning in stereodeficient subjects
J. optom. (Internet)
; 14(2): 156-165, April-June 2021. tab, graf
Artigo
em Inglês
| IBECS
| ID: ibc-208527
Biblioteca responsável:
ES1.1
Localização: ES15.1 - BNCS
ABSTRACT
Background:
Stereopsis is a valuable feature of human visual perception which is critically impaired in amblyopia, but can be improved through perceptual learning (PL). This article aims to determine the variables affecting the outcomes and intensity of a stereoacuity stimulation program.MethodsRe-analysis of a previous study in stereodeficient subjects with a history of amblyopia. Sixteen subjects (12 females, 4 males) aged between 7 and 14 received stereopsis stimulation through a PL program at home. A correlation analysis evaluated whether treatment intensity or percentage improvement were related to age or baseline stereoacuity measurements. Further analysis was performed to assess whether the type of amblyopia conditioned the PL treatment (Fischer Statistical Test).ResultsNo significant correlation was found between age and percentage improvement (rho=−0.08, p=0.749), nor was age correlated with treatment intensity (rho=0.170, p=0.544). However, a correlation did exist between baseline stereoacuity levels and treatment intensity (rho=0.734, p=0.001). Baseline stereoacuity and percentage improvement had a negative correlation (rho=−0.748, p=0.005), while treatment intensity showed only a weak association with the type of amblyopia (p=0.064).ConclusionsPresent results suggest that perceptual learning in stereodeficient subjects is not influenced by either the subject's age or the type of amblyopia. Baseline stereoacuity, on the other hand, seems to be a predicting factor for perceptual learning outcomes. According to our study, subjects with poor basal stereoacuity needed more sessions to improve and their percentage improvement was lower. However, due to the reduced size of the sample, the results should be considered with caution. (AU)
Texto completo:
Disponível
Coleções:
Bases de dados nacionais
/
Espanha
Base de dados:
IBECS
Assunto principal:
Percepção Visual
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Visão Binocular
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Acuidade Visual
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Ambliopia
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Percepção de Profundidade
Limite:
Adolescente
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Criança
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Feminino
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Humanos
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Masculino
Idioma:
Inglês
Revista:
J. optom. (Internet)
Ano de publicação:
2021
Tipo de documento:
Artigo
Instituição/País de afiliação:
Begitek Clinic/Spain
/
Clinic Begira/Spain
/
Complutense University/Spain
/
University of Alicante/Spain
/
University of Oviedo/Spain