Increasing the proportion of binocular vision makes horizontal prism adaptation complete

• Published in: Ophthalmic & physiological optics Vol. 25; no. 2; pp. 168 - 170
• Main Authors: Brautaset, R. L., Jennings, J. A. M.
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Science Ltd 01.03.2005; Blackwell
• Subjects: Adaptation, Ocular; Adult; binocular vision; Biological and medical sciences; Convergence, Ocular; Eye and associated structures. Visual pathways and centers. Vision; Eyeglasses; Fundamental and applied biological sciences. Psychology; Humans; Medicin och hälsovetenskap; Optometry - methods; phoria; Pilot Projects; prism; vergence adaptation; Vertebrates: nervous system and sense organs; Vision, Binocular; Human; Horizontal; Proportion; Complete; vergence adaptation; Binocular vision; Ophthalmology; Prism; Adaptation; phoria
• ISSN: 0275-5408; 1475-1313
• DOI: 10.1111/j.1475-1313.2005.00275.x

In previous phoria adaptation experiments on normal subjects adaptation tends to reach only approximately 2/3 of the prism‐induced phoria while clinical experience indicates that prism adaptation is usually complete. The present data show that increasing the proportion of binocular experience through the phoria‐inducing prism allows adaptation to become complete. Longer periods of binocular vision give a better indication of vergence adaptation function. This is particularly important in experiments where normal and abnormal adaptive abilities are being compared.