A Study of Stereopsis in Children and Adolescents with Myopic Refractive Error
Journal Title: International Journal of Contemporary Medical Research - Year 2017, Vol 4, Issue 1
Abstract
Introduction: Stereo acuity is important part of binocular single vision, playing precise role in our skilful activities. Study was done to find out the correlation between stereopsis and myopia in age group of 5 to 18 years and to investigate whether there is improvement in stereopsis after correcting the refractive error. Material and methods: It was a prospective observational study conducted at tertiary care centre. 75 myopic patients with myopia were included. Participants with squint, amblyopia, nystagmus, congenital cataract, glaucoma, retinopathy of prematurity, mental retardation, neurological disorders, etc were excluded. All participants underwent vision assessment, cycloplegic refraction and baseline stereopsis was assessed with TNO test. Refractive error was corrected with glasses and reassessment of vision and stereopsis was done after one month. Results: Out of 75 participants 24 were simple myopes with mean of -2.32D ± 1.42D SD (Range - 0 . 2 5 D t o - 6 . 5 D ) , 51 were astigmatic with mean of -1.14D ± 1.40D SD(Range -0.25D to -5.5D), 65 were having anisometropia with mean of -1.09D ± 1.60D SD(Range -0.25D to -7.5D). Simple myopia of >-3 D, astigmatism of > -1 D, anisometropia of > -1 D were associated with decreased stereoacuity on TNO test (P = 0.000624, 0.031724, 0.0188 respectively) and there was significant improvement in stereopsis after correction of refractive error (P = <0.00001). Conclusions: Simple myopia of >3D, Astigmatism and anisometropia of >1 D are associated with reduced stereopsis, however with the use corrective lenses there is improvement in stereopsis.
Authors and Affiliations
Chanchal G. , Anamika A. , Darshana R, Anuja Gharat, Amruta K, Aditi A
Keywords
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