Assessment of stereopsis in pediatric and adolescent spectacle-corrected refractive error – A cross-sectional study

Autor:	Vignesh, Elamurugan, Pragathi, Shankaralingappa, G, Aarthy, Nirupama, Kasturi, Ramesh K, Babu
Rok vydání:	2022
Předmět:	Depth Perception Ophthalmology Cross-Sectional Studies Eyeglasses Adolescent Humans Child Refractive Errors Anisometropia
Zdroj:	Indian Journal of Ophthalmology. 70:604
ISSN:	0301-4738
DOI:	10.4103/ijo.ijo_997_21
Popis:	To assess the level of stereopsis in school children with spectacle-corrected refractive errors using Titmus fly and Randot stereo tests, evaluate the factors associated with the level of stereopsis, and determine the level of agreement between the two tests.A cross-sectional study was done on 5- to 18-year-old school-children wearing spectacles for at least 1-month duration. Visual acuity was assessed using Snellen's visual acuity chart, and their spectacle correction being used currently was measured using an auto lensmeter. The level of stereopsis was assessed using Randot and Titmus fly stereo tests. Data were entered using Microsoft Excel and analyzed using IBM-SPSS version 20, Chicago, IL. The associations between stereopsis and type of refractive error, visual acuity, age, and gender were analyzed. An agreement between Randot and Titmus fly test was done using Kappa statistics.A total of 222 children (101 boys and 121 girls; mean age 13 years) were assessed. Astigmatism was the most prevalent refractive error (60.4%), followed by myopia (24.8%) and hypermetropia (1.4%). Thirty children (13.5%) had anisometropia. All hyperopes had normal stereopsis. Children with spherical myopia had better stereopsis, followed by astigmatism and anisometropia in the same order (P = 0.036). Children with anisometropia ≤1.5 D had better stereopsis than anisometropia more than 1.5 D. Stereopsis was also found to have no correlation with the age and visual acuity at the time of testing or the age at which the child first started wearing spectacles. Stereopsis values obtained from Randot and Titmus fly stereo tests showed moderate agreement with Kappa value 0.581.Anisometropia and astigmatism are the most critical factors determining the level of stereopsis in refractive errors.
Databáze:	OpenAIRE
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