In this study we evaluate the agreement of the optical low-coherence reflectometry (OLCR) device LENSTAR LS900 with partial coherence interferometry (PCI) device IOLMaster700

as a result of our study, 128 eye of 72 patients ( 67 cases by iolmaster and 61 cases by Lenstar method)were evaluated.. All patients were operated by a surgeon and all biometry were performed by an experienced technician. Patients were evaluated 1 month after surgery to determine the refractive errors. ,We compare the mean absolute refractive error after surgery in two groups using paired t-test.

The results showed that in the refractive error study, the mean absolute magnitude of refractive error before surgery in the Iolmaster group was 2.88 (SD: 4.05) and in the lenstar group, 2.63(SD: 2.83) There was no significant difference between the two groups in terms of refractive error before surgery (p.valu: 0.26). The mean axial lenght of the eye was 23.27 (SD: 1.41) in the Iolmaster method and in the Lenstar method 23.30 (SD: 1.39), which did not show any significant difference between the two groups (p.valu: 0.68) . The mean absolute magnitude of refractive error after surgery in the Iolmaster group was 0.41 (SD: 0.29) and the mean of this was 0.46 (SD: 0.29) in the lenstar group. There was no significant difference between the two groups.

There is no significant difference between Iolmaster and lenstar biometry methods in determining the axis length and absolute magnitude of refractive error after cataract surgery.