The Evaluation of Noncycloplegic and Cycloplegic Autorefraction in Children According to the Age.

Kim, Min Seop; Chang, Hae Ran

Original Article

Journal of the Korean Ophthalmological Society 1998;39(4):728-734.
Published online April 1, 1998.

The Evaluation of Noncycloplegic and Cycloplegic Autorefraction in Children According to the Age.

Min Seop Kim, Hae Ran Chang

Department of Ophthalmology, College of Medicine, Sung Kyun Kwan University, Kangbuk Samsung Hospital, Seoul, Korea.

소아에서 조절마비전과 하에 시행한 자동굴절검사의 연령별 분석

김민섭(Min Seop Kim),장혜란(Hae Ran Chang)

Abstract

We analysed the difference of values between noncycloplegic and cycloplegic autorefractionand refraction by ophthalmologist in children. We classified the 109 children [218 eyes] who did not have strabismus or amblyopia into five groups according to the age. Their age ranged from 3 to 12. They were examined with Canon RK-3 autorefractor before and after cycloplegia and then, cycloplegic and post-cycloplegic refraction were performed by ophthalmologist. Discrepancies beyond 0.5D in spherical and cylindrical power and 10 degree in cylindrical axis were regarded as significant. The percentages of discrepancy were greater in spherical power between noncycloplegic autorefraction and refraction by ophthalmologist especially in young age groups[p<0.05]. The percentages of discrepancy were greater in spherical and cylindrical power between cycloplegic autorefraction and refraction by ophthalmologist especially in young age groups[p<0.05]. The percentages of discrepancy of cycloplegic autorefraction showed a tendency to be greater than those of noncycloplegic autorefraction in spherical power as compared with refraction by ophthalmologist. In conclusion, the refractive measurements of cycloplegic autorefractor is not close to those of refraction by ophthalmologist in children. The refraction by ophthalmologist must be recommended for correction of refractive errors in children.

Key Words: Canon RK-3 autorefractor;Noncycloplegic and cycloplegic autorefraction;Percentages of discrepancy;Refraction by ophthalmologist