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KMID : 1011420190240010083
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Journal of Korean Ophthalmic Optics Society
2019 Volume.24 No. 1 p.83 ~ p.88
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A Case Report of Vision Therapy in a Patient with Esotropia and Hypotropia
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Kim Hyo-Jin
Lee Yang-Hoon
Park Chang-Won
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Abstract
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Purpose: To evaluate the efficacy of vision therapy in a child with esotropia and hypotropia over a 10-week follow-up period.
Methods: A 10-year-old girl developed esotropia with hypotropia after surgery for treating exotropia. Vision therapy was performed twice a week for 50 minutes at the Korea Vision Training Center and daily for 20 minutes at home over 10 weeks. The training methods were designed to improve the patient’s sense of balance, development of body central line, and sensory integration. Visual function factors such as strabismus, refraction, stereopsis, Worth’s 4- Dot, fusion ability at distance and near, accommodative amplitudes, extraocular movements, and accommodative facility were examined.
Results: The deviation changed from 18 prism diopter (Δ) esotropia, left 14 Δ hypotropia to 12 Δ esotropia, left 10 Δ hypotropia at a distance after 10 weeks. At near, the deviation changed from 6 Δ esotropia, left 14 Δ hypotropia to 6 Δ esotropia, left 12 Δ hypotropia after 10 weeks. Monocular accommodative facility improved from 12 cpm to 15 cpm after 4 weeks. Stereopsis developed after 10 weeks, although it was not observed at 4 weeks. Ocular fatigue decreased after 3 weeks, and body activities and sense of balance improved at 10 weeks.
Conclusions: The binocular functions of a child with esotropia and hypotropia were successfully improved after vision therapy for 10 weeks.
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KEYWORD
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Esotropia, Hypotropia, Vision therapy, Fusion ability, Eye fatigue, Stereopsis
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