Clinical Effect of Auto-focusing Low Vision Devices.

Kim, Jee Taek; Park, Jong Hwa; Moon, Nam Ju

Original Article

Journal of the Korean Ophthalmological Society 2006;47(6):966-970.
Published online June 30, 2006.

Clinical Effect of Auto-focusing Low Vision Devices.

Jee Taek Kim, Jong Hwa Park, Nam Ju Moon

Department of Ophthalmology, College of Medicine, Chung-Ang University, Seoul, Korea. njmoon@chol.com

자동 초점조절 저시력기구의 임상효과

김지택,박종화,문남주

Department of Ophthalmology, College of Medicine, Chung-Ang University, Seoul, Korea

Correspondence: Jee Taek Kim, M.D.

Abstract

PURPOSE
To evaluate the clinical results of the auto-focusing low vision device (EYE FINE) in low vision patients. METHODS: We assessed the clinical effect after prescription of the device in 21 patients who visited the low vision clinic from July 2004 to January 2005. We examined visual acuity and contrast sensitivity before and after prescription. RESULTS: Mean distant visual acuity increased from 1.00+/-0.30 LogMAR to 0.69+/-0.34 LogMAR and the differences were statistically significant (P<0.01). Mean near visual acuity increased from 0.89+/-0.25 LogMAR to 0.71+/-0.30 LogMAR (P<0.01). And mean contrast sensitivities at spatial frequencies of 1.5, 3, 6, 12 and 18 cycles per degree (cpd) increased from 7.9+/-4.5, 10.8+/-7.4, 10.5+/-9.6, 3.9+/-3.8 and 2.0+/-2.7 to 10.5+/-8.0, 15.1+/-10.6, 16.3+/-13.6, 6.5+/-7.3 and 2.5+/-3.0, respectively. CONCLUSIONS: EYE FINE offers the advantage of auto-focusing according to working distance.

Key Words: Auto-focusing device;Low vision;Low vision aid