| Comparative Analysis of Corneal Refractive Power Measured with AL-Scan(R), Autokeratometer, and Pentacam(R). |
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Sung Jin Park, Sung Hyup Lim, Ho Young Lee |
1Department of Ophthalmology, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
2Shinsegae Eye Clinic, Busan, Korea. happytriad@gmail.com |
| 에이엘 스캔, 자동각막굴절계, 펜타캠의 각막 굴절력 비교 분석 |
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박성진1⋅임성협1⋅이호영2 |
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Department of Ophthalmology, Busan Paik Hospital, Inje University College of Medicine1, Busan, Korea Shinsegae Eye Clinic2, Busan, Korea. |
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| Abstract |
PURPOSE
To investigate clinical availability of AL-Scan(TM) (Nidek, Gamagori, Japan) by comparing corneal refractive power with AL-Scan(TM), Autokeratometer(TM) (Topcon KR-1, Tokyo, Japan) and Pentacam(TM) (Oculus, Wetzlar, Germany) devices. METHODS: Seventy-one patients (142 eyes) who visited our hospital for refractive surgery were tested using AL-Scan(R), Autokeratometer and Pentacam(R) and corneal refractive power was compared among devices. RESULTS: When comparing measurements with AL-Scan(R), Autokeratometer and Pentacam(R), the mean corneal refractive power was 43.37 +/- 1.32 D (2.4 mm zone), 43.35 +/- 1.32 D (3.3 mm zone), 43.36 +/- 1.35 D, and 43.35 +/- 1.36 D respectively and showed no significant differences. Corneal refractive power had strongly positive linear correlation (p < 0.001) and Bland-Altman plots showed high degree of agreement among AL-Scan(R), Autokeratometer and Pentacam(R) devices. CONCLUSIONS: Because measuring ocular biometry with AL-Scan(R) including axial length, intraocular lens power calculation and topography simultaneously is possible, clinical use is convenient. Corneal refractive power was not different when compared with autokeratometer and Pentacam(R) devices, thus, AL-Scan(R) can be used in the clinical environment. |
| Key Words:
AL-Scan(R);Autokeratometer;Corneal refractive power;Pentacam(R) |
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