ArticleAnnals of medicine and surgery (2012)2026
Comparison of binocular vision status between spectacles & spherical equivalent soft contact lens wear in patients with low myopic astigmatism.
Article in Annals of medicine and surgery (2012), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Purpose: To investigate the acute, same-day changes in binocular vision parameters when switching from spectacle wear to spherical-equivalent soft contact lens wear in patients with low myopic astigmatism. Method: This acute, same-day comparative study included 36 participants aged 15-35 years with low myopic astigmatism. A comprehensive binocular vision assessment - including accommodative amplitude (AA), accommodative facility (AF), stereoacuity, cover test, horizontal phoria, near point of convergence (NPC), negative relative accommodation (NRA), positive relative accommodation (PRA), positive fusional vergence, negative fusional vergence, and lag of accommodation - was performed with both spectacles and spherical-equivalent soft contact lenses. Measurements were obtained following a 30-minute lens stabilization period. Mean differences between conditions were analyzed using paired Results: When comparing spherical-equivalent soft contact lenses with spectacles, small but statistically significant differences were observed in selected binocular parameters. The NPC was slightly more receded with contact lenses, with a mean difference of -0.36 ± 0.76 cm compared with spectacles ( Conclusion: These findings suggest that when low myopic astigmatism is corrected using spherical-equivalent soft contact lenses, certain binocular vision parameters may demonstrate acute changes. Careful binocular vision assessment may therefore be beneficial when prescribing simplified spherical correction in astigmatic patients.
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