Change In Sports Vision After Viewing Virtual Reality
Published 2023 - 41st Congress of the ESCRS
Reference: PO0929 | Type: Free paper | DOI: 10.82333/b1p7-g119
Authors: Hyun Uk Park* 1 , Tae Young Gil 2 , Chang Won Park 3
1Dept. of leisure and sports,Baekseok Culture University,Cheonan si ,Korea, Republic Of, 2Dept. of Ophthalmology ,Min Eye Clinic,Cheongju si ,Korea, Republic Of, 3Dept. of Optometry,Baekseok Culture University,Cheonan si ,Korea, Republic Of
Purpose
To investigate the changes in sports vision and binocular vision after viewing virtual reality(VR).
Setting
16 badminton player(20-23 years) who belonged to B University in Korea with no systemic disease, ophthalmic disease, intermittent XT without previous surgery were enrolled in this study. It was implemented to watch a movie in VR for 40 minutes in a very close range(15 to 20 mm in front of the eyes).
Methods
In order to evaluate the visual function of the subjects viewing the movie(VR), in addition to the visual acuity and refraction error, the horizontal phoria, near point of convergence, accommodative efficiency, stereopsis, and accommodation amplitude tests were performed. All tests were performed after correction of subject's distance refractive error. Horizontal phoria was measured using the Von Graefe method, near point of convergence was tested using the tip of a ballpoint pen as a target point, accommodation amplitude was tested using the push-up method, and accommodative efficiency was tested for 1 minute using a ± 2.00 D flipper lens.
Results
12 subjects had 6∆~8∆ exo. and 4 subjects had 1∆~2∆ eso. on the horizontal phoria test measured before VR viewing. The subjects who showed the greatest change in binocular visual function after 30 minutes of VR viewing showed differences in near-convergence, near-accommodation, and accommodative efficiency than in the amount of phoria. The near point of convergence 13 cm before VR viewing increased to 15 cm after viewing, and the accommodative near point was measured from 12 cm to 15 cm.
As for the result efficiency of accommodative, the time to see clearly was delayed when a (+) lens was applied. All of the subjects showed an increasing in the esophoria and the near point of convergence and the near point of accommodation became shorter.
Conclusions
After using VR for 30 minutes, binocular vision function and eye muscles were affected in subjects with esophoria and exophoria. In the case of sports player, it is thought that excessive VR viewing should be limited because the impaired binocular vision function will lead to the deterioration of performance.