ESCRS - P017 - COMPARISON OF KERATOMETRY AND TOTAL KERATOMETRY BETWEEN CZM IOL MASTER 700 AND CASSINI TECHNOLOGIES AMBIENT TOPOGRAPHER

COMPARISON OF KERATOMETRY AND TOTAL KERATOMETRY BETWEEN CZM IOL MASTER 700 AND CASSINI TECHNOLOGIES AMBIENT TOPOGRAPHER

Published 2023 - 27th ESCRS Winter Meeting

Reference: P017 | Type: Free Paper Submission | DOI: 10.82333/wrbc-3233

Authors: Ivan Gabric 1 , Dino Šabanovic* 1 , KRESIMIR GABRIC 1

1Refractive Surgery,Eye Clinic Svjetlost,ZAGREB,Croatia

Purpose

To evaluate level of agreement between these two devices often used in premium lens surgery. 

Setting

University Eye Clinic Svjetlost, Zagreb, Croatia

Methods

Case series of 91 eyes were recorded on both devices by the same operator. Both devices made 3 measurements and a mean of the 3 measurements was used for final analysis. K1, K2, axis of K2, TK1, TK2, axis of TK2 were analyzed. 

Results

The 91 analyzed eyes showed the following data.

IOL M group

K1: 42.41 SD 1.79, K2: 43.26 SD 1.86, K2 axis 87.4 SD 50.88

TK1 42.43 SD 1.82, K2: 43.32 SD 1.91, K2 axis 92.10 SD 56.34

Cassini group:

K1: 42.4 SD 1.78, K2 43.24 SD 1.82 K2 axis 87.1 SD 46.55

TK1 42.54 SD 1.8, K2 43.47, SD 1.84, K2 axis 85.31 SD 51.5

K1 values showed no real difference P value 0.88, K2 values no real difference P value 0.94, TK1 P=0.7, TK 2 P=0.73, Axis of K2 showed a P value of 0.89, TK2 axis also showed statistically insignificant mismatch  of P=0.2

Conclusion

Both devices offer a very reliable way of obtaining keratometry values for cataract and refractive lens surgery. Keratometry values can be interchanged and used for calculations. Benefits of Cassini over IOL master is the ability to present topography data beyond the central 4-5 mm area.