The Effect of Home-Based Dichoptic Therapy on Young Adults with Non-Strabismic Anisometropic Amblyopia on Stereo Acuity
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: Sunda...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Dove Medical Press
2022-11-01
|
| Series: | Clinical Optometry |
| Subjects: | |
| Online Access: | https://www.dovepress.com/the-effect-of-home-based-dichoptic-therapy-on-young-adults-with-non-st-peer-reviewed-fulltext-article-OPTO |
| _version_ | 1798016123047772160 |
|---|---|
| author | Ojiabo SN Munsamy AJ |
| author_facet | Ojiabo SN Munsamy AJ |
| author_sort | Ojiabo SN |
| collection | DOAJ |
| description | 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 Mann–Whitney 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 arc− 1 [IQR:260;600; p< 0.001] when compared to the control group.Conclusion: Home-based dichoptic therapy improved stereo-acuity in non-strabismic anisometropic amblyopes (moderate) in young adults. Thus suggesting that binocularity can improve in anisometropic adult amblyopes with a treatment modality that may be a convenient option better suit the demanding lifestyle of economically active adults who may not be able to comply with clinic-based therapy.Keywords: adult amblyopia, stereo acuity, anisometropia, binocular vision, dichoptic therapy |
| first_indexed | 2024-04-11T15:45:41Z |
| format | Article |
| id | doaj.art-71b7039bd03349eb9d604a49bebf9278 |
| institution | Directory Open Access Journal |
| issn | 1179-2752 |
| language | English |
| last_indexed | 2024-04-11T15:45:41Z |
| publishDate | 2022-11-01 |
| publisher | Dove Medical Press |
| record_format | Article |
| series | Clinical Optometry |
| spelling | doaj.art-71b7039bd03349eb9d604a49bebf92782022-12-22T04:15:35ZengDove Medical PressClinical Optometry1179-27522022-11-01Volume 1423724779919The Effect of Home-Based Dichoptic Therapy on Young Adults with Non-Strabismic Anisometropic Amblyopia on Stereo AcuityOjiabo SNMunsamy AJSunday 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 Mann–Whitney 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 arc− 1 [IQR:260;600; p< 0.001] when compared to the control group.Conclusion: Home-based dichoptic therapy improved stereo-acuity in non-strabismic anisometropic amblyopes (moderate) in young adults. Thus suggesting that binocularity can improve in anisometropic adult amblyopes with a treatment modality that may be a convenient option better suit the demanding lifestyle of economically active adults who may not be able to comply with clinic-based therapy.Keywords: adult amblyopia, stereo acuity, anisometropia, binocular vision, dichoptic therapyhttps://www.dovepress.com/the-effect-of-home-based-dichoptic-therapy-on-young-adults-with-non-st-peer-reviewed-fulltext-article-OPTOadult amblyopiastereo acuityanisometropiabinocular visiondichoptic therapy |
| spellingShingle | Ojiabo SN Munsamy AJ The Effect of Home-Based Dichoptic Therapy on Young Adults with Non-Strabismic Anisometropic Amblyopia on Stereo Acuity Clinical Optometry adult amblyopia stereo acuity anisometropia binocular vision dichoptic therapy |
| title | The Effect of Home-Based Dichoptic Therapy on Young Adults with Non-Strabismic Anisometropic Amblyopia on Stereo Acuity |
| title_full | The Effect of Home-Based Dichoptic Therapy on Young Adults with Non-Strabismic Anisometropic Amblyopia on Stereo Acuity |
| title_fullStr | The Effect of Home-Based Dichoptic Therapy on Young Adults with Non-Strabismic Anisometropic Amblyopia on Stereo Acuity |
| title_full_unstemmed | The Effect of Home-Based Dichoptic Therapy on Young Adults with Non-Strabismic Anisometropic Amblyopia on Stereo Acuity |
| title_short | The Effect of Home-Based Dichoptic Therapy on Young Adults with Non-Strabismic Anisometropic Amblyopia on Stereo Acuity |
| title_sort | effect of home based dichoptic therapy on young adults with non strabismic anisometropic amblyopia on stereo acuity |
| topic | adult amblyopia stereo acuity anisometropia binocular vision dichoptic therapy |
| url | https://www.dovepress.com/the-effect-of-home-based-dichoptic-therapy-on-young-adults-with-non-st-peer-reviewed-fulltext-article-OPTO |
| work_keys_str_mv | AT ojiabosn theeffectofhomebaseddichoptictherapyonyoungadultswithnonstrabismicanisometropicamblyopiaonstereoacuity AT munsamyaj theeffectofhomebaseddichoptictherapyonyoungadultswithnonstrabismicanisometropicamblyopiaonstereoacuity AT ojiabosn effectofhomebaseddichoptictherapyonyoungadultswithnonstrabismicanisometropicamblyopiaonstereoacuity AT munsamyaj effectofhomebaseddichoptictherapyonyoungadultswithnonstrabismicanisometropicamblyopiaonstereoacuity |