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Clinical observation on the changes of astigmatism degree of the original
astigmatism cataract after different incision operations |
| JIAO Bingtian*, CUI Lanjun |
| Ophthalmology Department, Dezhou Youfu Hospital, Dezhou 253000, Shandong, P.R. China |
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Abstract Objective To compare the effect of two different incision positions on the original astigmatism of cornea.Methods One hundred and eighty-six cases (186 eyes) of age-related cataract with preoperative astigmatism≤2.0 D in our hospital were selected as the study objects. All the patients underwent phacoemulsification combined with IOL implantation with 3.0 mm transparent corneal incision. According to the incision position, the patients were divided into group A (88 eyes) and group B (98 eyes). The incision of clear cornea was made at 10-12 points in group A, while the incision of steep corneal axis was selected in group B according to the preoperative corneal curvature examination. According to whether the preoperative astigmatism degree≤0.75 D, the changes of postoperative corneal astigmatism degree and visual acuity recovery were compared between the two groups.Results In patients with astigmatism ≤0.75 D, compared with that before surgery, the astigmatism degree decreased significantly 1 week after surgery, with P<0.05, without significant changes in astigmatism 1 month and 3 months after the operation. In patients with astigmatism≤0.75 D, compared with group A, the astigmatism degree of group B decreased significantly at different time points after the operation, P<0.05. In group B, the astigmatism degree gradually decreased with the extension of postoperative time, P<0.05.Conclusion For the patients with preoperative astigmatism≤0.75 D, the early astigmatism of different incisions decreased, but for the patients with preoperative astigmatism>0.75 D, the postoperative astigmatism decreased, and the better uncorrected visual acuity could be obtained by incision on the steep axis of cornea.
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Received: 06 March 2020
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