To evaluate the change of postoperative refraction after cataract surgery in patients with a history of acute primary angle closure.

A survey was conducted on 40 eyes of 40 patients who underwent cataract surgery with a history of acute primary angle closure, and 40 eyes of 40 patients who underwent cataract surgery only during the follow-up period of six months. We reviewed changes in the postoperative refraction and compared the difference between the postoperative spherical equivalent and target refraction in both groups.

In the group with a history of acute primary angle closure, target refraction was -0.20±0.27D and the six months postoperative spherical equivalent was -0.76±1.12D. In the group with cataract only, target refraction was -0.30±0.20D and the six months postoperative spherical equivalent was -0.22±0.57D. In the group with the history of acute primary angle closure, the postoperative refraction shifted to myopic refractive power significantly.

In cataract patients with a history of acute primary angle closure, there was a myopic shift in postoperative refraction after cataract surgery. Therefore, this finding should be considered during cataract surgery.