Evaluation of the effect of OCT in the treatment of primary angle closure glaucoma by laser peripheral iris
摘要
Objective: To observe the anterior chamber angle opening distance before and after laser peripheral iris (LPI) in patients with different clinical types of primary angle closure glaucoma (PACG) by using optical coherence tomography (OCT), and evaluate the effect of the treatment. Methods: Selected 46 cases (50 eyes) of patients with PACG, including 26 cases (27 eyes) of acute angle closure glaucoma at the preclinical stage and remission phase of ocular and 20 cases (23 eyes) of chronic angle closure glaucoma, implemented LPI, examined the anterior chamber angle opening distance at the point of 500 and 750 μm from posterior to the scleral before and after surgery for 2 weeks by OCT, using a paired t-test. Results: Compared the anterior chamber angle opening distance before and after surgery for 2 weeks, the difference in patients with acute angle closure glaucoma was statistically significant (P<0.05), but not statistically significant in patients with chronic angle closure glaucoma (P>0.05). Conclusion: The opening distance of the anterior chamber angle of the patients with acute angle closure glaucoma after LPI was increased, and the treatment effect was better; but of the patients with chronic angle closure glaucoma after LPI, the distance was not obviously increased, the tendency of anterior chamber angle occlusion still existed after LPI.
