Abstract：Objective: To compare the effect of different incisions on preexisting corneal astigmatism during phacoemulsification. Methods: According to the results of corneal topography, corneal astigmatism between 1.0 D to 2.0 D, 47 patients (59 eyes) were divided into 2 groups. Different incisions for cataract surgery were made for each group. Group A (30 eyes): surgical incision for conventional 11:00 3.0mm transparent corneal incision; Group B (29 eyes): the incision was the clear corneal incision on the steepest corneal meridian. After surgery, the corneal topography was observed. The visual acuity, corneal astigmatism, astigmatism and astigmatism of the patients were observed at 1 week, 1 month, 3 months after operation. Results: The visual acuity of each group was significantly improved after operation. There was no significant difference for group A astigmatism before and after operation (p>0.05). Compared with group A, the astigmatism of group B was significantly reduced, and the difference was statistically significant (p<0.05). There was no significant difference between group A and group B at each time point in the axial ratio of astigmatism (p>0.05). Conclusion: The incisions on the steepest meridian can correct the midrange preexisting corneal astigmatism.
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2017, Vol. 23 
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