Comparison of three vision therapy approaches for convergence insufficiency
Purpose: We compared the effectiveness of three active vision therapy approaches for convergence insufficiency (CI). Methods: This randomized clinical trial included patients meeting the eligibility criteria and with symptomatic CI, who were allocated into three groups. In the home-based vision orth...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Knowledge E
2018-01-01
|
| Series: | Journal of Ophthalmic & Vision Research |
| Subjects: | |
| Online Access: | http://www.jovr.org/article.asp?issn=2008-322X;year=2018;volume=13;issue=3;spage=307;epage=314;aulast= |
| _version_ | 1829455709709795328 |
|---|---|
| author | Maryam Aletaha Farideh Daneshvar Mahnaz Mosallaei Abbas Bagheri Mohammad Reza Khalili |
| author_facet | Maryam Aletaha Farideh Daneshvar Mahnaz Mosallaei Abbas Bagheri Mohammad Reza Khalili |
| author_sort | Maryam Aletaha |
| collection | DOAJ |
| description | Purpose: We compared the effectiveness of three active vision therapy approaches for convergence insufficiency (CI).
Methods: This randomized clinical trial included patients meeting the eligibility criteria and with symptomatic CI, who were allocated into three groups. In the home-based vision orthoptic therapy (HBVOT) group, patients performed the pencil push-up procedure 15 min/day for 5 days/week. In the office-based vision orthoptic therapy (OBVOT) group, patients underwent 60-min orthoptic therapy using a major amblyoscope twice weekly with additional home orthoptic therapy. In the augmented office-based vision orthoptic therapy (AOBVOT) group, patients performed orthoptic exercises using 3-diopter over-minus lenses and a base-out prism in addition to major amblyoscope therapy, and additional home reinforcement was prescribed during the same time period.
Results: All 84 subjects (mean age, 26.8 ± 8.3 years) showed a statistically significant improvement in near exophoria, positive fusional vergence (PFV) at near, near point of convergence (NPC), stereoacuity, and Convergence Insufficiency Symptom Survey (CISS) scores at follow-up. Exophoria decreased by 64%, 68%, and 85% in the HBVOT, OBVOT, and AOBVOT groups, respectively (P = 0.2). PFV increased by 68%, 100%, and 100% in the HBVOT, OBVOT, and AOBVOT groups, respectively (P < 0.001). NPC decreased (improved) by 86%, 89%, and 96% in the HBVOT, OBVOT, and AOBVOT groups, respectively (P = 0.4). The CISS scores decreased by 75%, 96%, and 100% in the HBVOT, OBVOT, and AOBVOT groups, respectively (P = 0.003).
Conclusion: Our results showed that in adults with CI, the augmented office-based orthoptic treatment was relatively more effective than the other treatments. |
| first_indexed | 2024-04-11T08:35:04Z |
| format | Article |
| id | doaj.art-0001489798af445b84c6c82b3da31976 |
| institution | Directory Open Access Journal |
| issn | 2008-322X |
| language | English |
| last_indexed | 2024-04-11T08:35:04Z |
| publishDate | 2018-01-01 |
| publisher | Knowledge E |
| record_format | Article |
| series | Journal of Ophthalmic & Vision Research |
| spelling | doaj.art-0001489798af445b84c6c82b3da319762022-12-22T04:34:22ZengKnowledge EJournal of Ophthalmic & Vision Research2008-322X2018-01-0113330731410.4103/jovr.jovr_99_17Comparison of three vision therapy approaches for convergence insufficiencyMaryam AletahaFarideh DaneshvarMahnaz MosallaeiAbbas BagheriMohammad Reza KhaliliPurpose: We compared the effectiveness of three active vision therapy approaches for convergence insufficiency (CI). Methods: This randomized clinical trial included patients meeting the eligibility criteria and with symptomatic CI, who were allocated into three groups. In the home-based vision orthoptic therapy (HBVOT) group, patients performed the pencil push-up procedure 15 min/day for 5 days/week. In the office-based vision orthoptic therapy (OBVOT) group, patients underwent 60-min orthoptic therapy using a major amblyoscope twice weekly with additional home orthoptic therapy. In the augmented office-based vision orthoptic therapy (AOBVOT) group, patients performed orthoptic exercises using 3-diopter over-minus lenses and a base-out prism in addition to major amblyoscope therapy, and additional home reinforcement was prescribed during the same time period. Results: All 84 subjects (mean age, 26.8 ± 8.3 years) showed a statistically significant improvement in near exophoria, positive fusional vergence (PFV) at near, near point of convergence (NPC), stereoacuity, and Convergence Insufficiency Symptom Survey (CISS) scores at follow-up. Exophoria decreased by 64%, 68%, and 85% in the HBVOT, OBVOT, and AOBVOT groups, respectively (P = 0.2). PFV increased by 68%, 100%, and 100% in the HBVOT, OBVOT, and AOBVOT groups, respectively (P < 0.001). NPC decreased (improved) by 86%, 89%, and 96% in the HBVOT, OBVOT, and AOBVOT groups, respectively (P = 0.4). The CISS scores decreased by 75%, 96%, and 100% in the HBVOT, OBVOT, and AOBVOT groups, respectively (P = 0.003). Conclusion: Our results showed that in adults with CI, the augmented office-based orthoptic treatment was relatively more effective than the other treatments.http://www.jovr.org/article.asp?issn=2008-322X;year=2018;volume=13;issue=3;spage=307;epage=314;aulast=Convergence Insufficiency; Orthoptic Therapy; Vision Therapy |
| spellingShingle | Maryam Aletaha Farideh Daneshvar Mahnaz Mosallaei Abbas Bagheri Mohammad Reza Khalili Comparison of three vision therapy approaches for convergence insufficiency Journal of Ophthalmic & Vision Research Convergence Insufficiency; Orthoptic Therapy; Vision Therapy |
| title | Comparison of three vision therapy approaches for convergence insufficiency |
| title_full | Comparison of three vision therapy approaches for convergence insufficiency |
| title_fullStr | Comparison of three vision therapy approaches for convergence insufficiency |
| title_full_unstemmed | Comparison of three vision therapy approaches for convergence insufficiency |
| title_short | Comparison of three vision therapy approaches for convergence insufficiency |
| title_sort | comparison of three vision therapy approaches for convergence insufficiency |
| topic | Convergence Insufficiency; Orthoptic Therapy; Vision Therapy |
| url | http://www.jovr.org/article.asp?issn=2008-322X;year=2018;volume=13;issue=3;spage=307;epage=314;aulast= |
| work_keys_str_mv | AT maryamaletaha comparisonofthreevisiontherapyapproachesforconvergenceinsufficiency AT faridehdaneshvar comparisonofthreevisiontherapyapproachesforconvergenceinsufficiency AT mahnazmosallaei comparisonofthreevisiontherapyapproachesforconvergenceinsufficiency AT abbasbagheri comparisonofthreevisiontherapyapproachesforconvergenceinsufficiency AT mohammadrezakhalili comparisonofthreevisiontherapyapproachesforconvergenceinsufficiency |