Abstract
Objective To compare the clinical effect of two kinds of operation for treating cataract after anti-glaucoma surgery. Methods Sixty-seven eyes of 67 cases with cataract after anti-glaucoma filtering surgery were randomly divided into two groups: group A and group B. Thirty-four patiens in group A were treated with manual small incision cataract extraction through temporal scleral tunnel and posterior chamber folding intraocular lens implantation.Thirty-three patients in group B were treated with clear corneal incision phacoemulsification and posterior chamber folding intraocular lens implantation.The vision before operation and 1 month after operation, intraocular pressure and complications after operation were observed. Results One month after operation, there were 21 eyes with corrected vision more than 0.5 (61.8%) in group A, and there were 21 eyes (63.6%) in group B. Between two groups, the difference was not statistically significant(x2=0.03, P=0.91 ). There were 2 eyes with ocular hypertension symptoms in group A, and 4 eyes in group B. The IOP returned to normal after using IOP-lowering drugs in three days. The difference in intraocular pressure 1 month after the operation between two groups was not statistically significant(t=0.34, P=0.58). The average value of corneal astigmatism in group A was statistically significantly higher than that in group B in postoperative 1 week (t=6.58, P=0.00). There was no statistically significant difference in corneal astigmastism between two groups in postoperative 1 month (t=1.42, P=0.18). There were postoperative complications in both groups, however, there was no statistically significant difference in the number of cases. Conclusion Two kinds of operations for cataract after anti-glaucoma surgery are safe and effective. Now, transparent corneal incision phacoemulsification is a kind of ideal operation method in treating cataract after glaucoma surgery, but its operation equipment and materials are expensive and it needs higher request for surgical techniques. But temporal scleral tunnel manual small incision cataract operation in treating cataract after anti-glaucoma surgery is easy to operate with low cost and is suited for primary hosptial to carry out. Key words: Cataract, after anti-glaucoma surgery; Transparent corneal incision; Cataract surgery, manual, small incision; Phacoemulsification
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