Corneal Topography and Pachymetery Changes after Biaxial Phaco

Abstract

Importance of the study: This study allows evaluating and monitoring corneal topography and pachymetry changes after on axis biaxial phaco.

Aim of the study: To reveal corneal topography and pachymetry changes after on axis biaxial phaco.

Settings: Department of ophthalmology, Faculty of medicine, Damascus University.

Design: Progressive cohort study.

Patients and methods: Thirty eyes with age related cataract were included in the study. All patients were studied by Pentacm Corneal Topography after on axis biaxial phaco. changes in corneal topography(K1, K2, Km, Rper, Q value , anterior chamber angel  and thinnest location pachymetry were studied. Corneal topography before and one month after surgery were compared.

Results:  Study showed that km decreased from 43.5 to 43.4 but the difference was not statistically evident (p=0.74), Q value decreased from 0.0433 to -0.021 and the difference was not statistically evident (p=0.73), central pachymetry decreased from 552 to 541 microns one month after surgery but the difference was not statistically evident too (P= 0.4024) ,while the anterior chamber angel increased from 35.96° to 44.87° and the difference was statistically evident ,(p=0.047).

Conclusion: Corneal surfaces and thinnest location pachymetry changes were limited and unimportant, while anterior chamber depth change was significant after on axis biaxial phacoemulsification