To investigate clinical availability of AL-Scan™ (Nidek, Gamagori, Japan) by comparing corneal refractive power with AL-Scan™, Autokeratometer™ (Topcon KR-1, Tokyo, Japan) and Pentacam™ (Oculus, Wetzlar, Germany) devices.

Seventy-one patients (142 eyes) who visited our hospital for refractive surgery were tested using AL-Scan®, Autokeratometer and Pentacam® and corneal refractive power was compared among devices.

When comparing measurements with AL-Scan®, Autokeratometer and Pentacam®, 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®, Autokeratometer and Pentacam® devices.

Because measuring ocular biometry with AL-Scan® 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® devices, thus, AL-Scan® can be used in the clinical environment.