To compare the axial lengths, anterior chamber depths, and keratometric measurements and to predict postoperative refractions of Dual Scheimpflug analyzer Galilei G6® and intra ocular lens (IOL) Master®.

A total of 50 eyes in 50 patients who received cataract surgery were included in the present study. The axial length, anterior chamber depth, and keratometry were measured using 2 types of partial coherence interferometries (Galilei G6® and IOL Master®). The SRK/T formula was used to calculate IOL power and the predictive error which subtracts predictive refraction from postoperative refraction was compared between the ocular biometry devices.

Axial lengths were 23.36 ± 0.80 mm and 23.36 ± 0.90 mm measured by Galilei G6® and IOL Master®, respectively. Axial length measured by Galilei G6® was not statistically significant compared with IOL Master® ( p = 0.321). The anterior chamber depth and keratometry were 3.22 ± 0.35 mm and 44.29 ± 1.40 D measured by Galilei G6® and 3.11 ± 0.46 mm and 44.39 ± 1.41 D measured by IOL Master®, respectively. The differences of anterior chamber depth and keratometry between the 2 devices were statistically significant ( p < 0.001 and p = 0.028, respectively). The mean absolute prediction errors were 0.45 ± 0.37 D and 0.49 ± 0.39 D in Galilei G6® and IOL Master®, respectively and was not statistically significantly different ( p = 0.423).

The ocular biometric measurements and prediction of postoperative refraction using Galilei G6® were as accurate as with IOL Master®.