Effect of Vision Therapy on Accommodation in Myopic Chinese Children. (21st December 2016)

• Record Type: Journal Article
• Authors: Ma, Martin Ming-Leung; Scheiman, Mitchell; Su, Cuiyun; Chen, Xiang
• Other Names: Queiros Antonio Academic Editor.
• Is Part Of: Journal of ophthalmology. Volume 2016(2016)
• Publication Date: 2016-12-21
• Subjects: Ophthalmology -- Periodicals; Eye Diseases; Ophthalmology; Ophthalmology; Electronic journals; Periodicals; Periodicals; Fulltext; Internet Resources; Periodicals; 617.7
• DOI: 10.1155/2016/1202469
• Languages: English
• ISSNs: 2090-004X

Abstract

Abstract : Introduction . We evaluated the effectiveness of office-based accommodative/vergence therapy (OBAVT) with home reinforcement to improve accommodative function in myopic children with poor accommodative response. Methods . This was a prospective unmasked pilot study. 14 Chinese myopic children aged 8 to 12 years with at least 1 D of lag of accommodation were enrolled. All subjects received 12 weeks of 60-minute office-based accommodative/vergence therapy (OBAVT) with home reinforcement. Primary outcome measure was the change in monocular lag of accommodation from baseline visit to 12-week visit measured by Shinnipon open-field autorefractor. Secondary outcome measures were the changes in accommodative amplitude and monocular accommodative facility. Results . All participants completed the study. The lag of accommodation at baseline visit was 1.29 ± 0.21 D and it was reduced to 0.84 ± 0.19 D at 12-week visit. This difference (−0.46 ± 0.22 D; 95% confidence interval: −0.33 to −0.58 D) is statistically significant (p < 0.0 0 01 ). OBAVT also increased the amplitude and facility by 3.66 ± 3.36 D (p = 0.001 3 ; 95% confidence interval: 1.72 to 5.60 D) and 10.9 ± 4.8 cpm (p < 0.0 0 01 ; 95% confidence interval: 8.1 to 13.6 cpm), respectively. Conclusion . Standardized 12 weeks of OBAVT with home reinforcement is able to significantly reduce monocular lag of accommodation and increase monocular accommodative amplitude and facility. A randomized clinical trial designed to investigate the effect of vision therapy on myopia progression is warranted.