Analysis of corneal refractive power after small incision surgery of non-phacoemmulsification for high myopic eyes with cataract

AIM: To evaluate the changes of corneal refractive power and surgically induced astigmatism(SIA)after small incision non-phacoemmulsification surgery for high myopic eyes with cataract in middle aged and senile people. METHODS: A retrospective study was done in 145 eyes of 103 middle aged and senile patients with high myopia and cataract who underwent small incision non-phacoemulsification surgery in our hospital. The keratometer was used to measure corneal horizontal refractive power(K1), vertical corneal refractive power(K2)and their axial on postoperative 3d, 1wk, 1 and 3mo. SIA was calculated by sine law and cosine law method. RESULTS: There was statistically significant difference on average corneal astigmatism at 3d and 1wk compared with that before surgeries(P