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Assessment of the accommodative facility training with flippers between sessions
Author(s): Rosa Calo-Santiago; Hugo Pena-Verdeal; Carlos Garcia-Resua; Eva Punin Dorrio; Maria J. Giraldez
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Paper Abstract

Purpose: Accommodative anomalies are a group of different visual problems that reduce the efficiency of the visual system. Binocular accommodative facility (BAF) therapy is used to train the ability of the eye to repeatedly change its accommodative state when changing focus between two focal planes during periods of time. The aim of this study was to evaluate the effect of BAF training with standard flipper dioptric treatments on a group of non-symptomatic young adults. Material and methods: 67 subjects were recruited among students attending the Optometry Clinic of the Optometry Faculty (USC, Spain). All of them had good general health and were free of any accommodative or binocular problems. Subjects were scheduled to four session one-week apart. In each session, they were requested to measure the BAF in cycles/minute (cpm) with a ±2.00D flipper while focusing a near test at 40 cm. Patients were also requested to point the difficulty for clearing with the minus, plus or with none pair of lenses. Results: There was found a statistical difference on BAF between the first and the final session when the whole sample was analysed (paired t-test: p <0.001), and when the sample was grouped by lens clearing difficulties (paired t-test: all p ≤0.005). BAF showed a statistically significant difference between results obtained in each session (ANOVA: p =0.002), and between the results of contiguous paired sessions (paired t-test: all p ≤0.047). Conclusion: The present study showed the positive effect of traditional dioptric training in amplitude flexibility improvement.

Paper Details

Date Published: 3 October 2019
PDF: 6 pages
Proc. SPIE 11207, Fourth International Conference on Applications of Optics and Photonics, 1120706 (3 October 2019); doi: 10.1117/12.2525858
Show Author Affiliations
Rosa Calo-Santiago, Univ. de Santiago de Compostela (Spain)
Hugo Pena-Verdeal, Univ. de Santiago de Compostela (Spain)
Carlos Garcia-Resua, Univ. de Santiago de Compostela (Spain)
Eva Punin Dorrio, Univ. de Santiago de Compostela (Spain)
Maria J. Giraldez, Univ. de Santiago de Compostela (Spain)


Published in SPIE Proceedings Vol. 11207:
Fourth International Conference on Applications of Optics and Photonics
Manuel Filipe P. C. M. Martins Costa, Editor(s)

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