1. The Effect of Home-Based Dichoptic Therapy on Young Adults with Non-Strabismic Anisometropic Amblyopia on Stereo Acuity
- Author
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Ojiabo,Sunday Nduka, Munsamy,Alvin J, Ojiabo,Sunday Nduka, and Munsamy,Alvin J
- Abstract
Sunday Nduka Ojiabo,1 Alvin J Munsamy2 1Department of Optometry, School of Health Science, University of KwaZulu-Natal, Westville Campus, Durban, South Africa; 2Discipline of Optometry, School of Health Science, University of KwaZulu-Natal, Westville Campus, Durban, South AfricaCorrespondence: Sunday Nduka Ojiabo, Email linkup2ojiabo@gmail.comAim: To evaluate the effect of home-based dichoptic visual therapy using anaglyphic red-green filters on the stereo acuity in a sample of young adults with non-strabismic anisometropic amblyopia.Methods: The study was observational and cross-sectional in design. Two groups (experimental vs control) were sourced using purposive sampling of young adults with non-strabismic amblyopia (experimental group) in comparison to an age-match control group without amblyopia. For the purpose of refractive adaptation, all participants in both groups were asked to wear their spectacle correction constantly for at least 16 weeks prior to exposure to home-based dichoptic therapy. Stereo acuity measurements using the Stereo Fly test were obtained before and after 40 hours exposure to home-based dichoptic therapy. The changes in stereo acuity post eight weeks (40 hours) training from baseline measurements was obtained. The difference in medians between the experimental and control groups using the MannâWhitney U-test was measured with significance set at P value of < 0.05.Results: A total of 38 young adults (19 males, 19 females) with a mean age of 24.05 ± 5.66 years were enrolled in this study. Nineteen anisometropic amblyopes comprised the experimental group, fifteen of which were classified as moderate amblyopia (6/12-6/36) and 19 non-amblyopes comprised the control group. Home-based dichoptic therapy used on the experimental group after 8 weeks showed a significant improvement in stereo-acuity with a mean improvement of 345.26 ± 184.85 sec arcâ 1 [IQR:260;600; p< 0.001] when compared to the control group.Conclusion: Home-based dic
- Published
- 2022