| Comparison of Aberrations in Korean Normal Eyes Measured With Two Different Aberrometers. |
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Jung Hoon Yum, Suk Kyue Choi, Jin Hyoung Kim, Do Hyung Lee |
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Department of Ophthalmology, Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea. eyedr0823@hotmail.com |
| 한국인 정상안을 대상으로 서로 다른 수차계로 측정된 안구 수차 값의 비교 |
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염정훈ㆍ최석규ㆍ김진형ㆍ이도형 |
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Department of Ophthalmology, Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea |
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| 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. |
| Key Words:
Aberrometer;Higher order aberration;Normal eye |
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