Comparison of Aberrations in Korean Normal Eyes Measured With Two Different Aberrometers.
10.3341/jkos.2009.50.12.1789
- Author:
Jung Hoon YUM
1
;
Suk Kyue CHOI
;
Jin Hyoung KIM
;
Do Hyung LEE
Author Information
1. Department of Ophthalmology, Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea. eyedr0823@hotmail.com
- Publication Type:Original Article
- Keywords:
Aberrometer;
Higher order aberration;
Normal eye
- MeSH:
Coma;
Eye;
Lotus
- From:Journal of the Korean Ophthalmological Society
2009;50(12):1789-1794
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To compare ocular higher order aberrations measured by two different aberrometers in a sample of normal eyes. METHODS: We included 41 normal eyes of Koreans in this study. Ocular aberration data were obtained through three measurements per eye using Zywave and OPD-Scan devices. Spherical equivalent and higher order aberrations calculated in the central 6 mm zone and expressed as root mean square (RMS) values were analyzed. RESULTS: A comparison of measurements between the Zywave and OPD-Scan devices demonstrated no statistically significant differences in the RMS values of total higher order aberration (p=0.11), but significant differences were detected in the RMS values of total spherical aberration, total coma and total trefoil (p<0.01). CONCLUSIONS: The two different aberrometers that we tested are suitable for taking repeated measurements and are internally consistent, but not interchangeable.
