Modified small-incision cataract surgery for combined extraction � A comparative study of two techniques

ABSTRACT

Purpose: To explore straight incision technique in terms of efficacy for intraocular pressure (IOP) lowering by small-incision cataract surgery (SICS) trab versus modified 揻rown� incision with triangular scleral flap technique. Methods: This study was done at a tertiary health center. It included 44 eyes diagnosed with cataract and coexisting primary glaucoma that underwent SICS with trabeculectomy using modified 揻rown� incision with triangular scleral flap technique and straight incision in group A (n = 22) and B (n = 22), respectively. Postoperative evaluation was done at first postoperative day, then at the end of first week, third week, and 6 weeks; at the end of third month and finally at the end of sixth months. Data were entered and analyzed via Microsoft Excel sheet and SPSS software using Mann朩hitney U test for averages and Chi-square test for categorical values. Results: Mean preoperative IOP in groups A and B were 38.6 and 29.1 mm Hg respectively, by applanation tonometry. After 6-month follow-up, mean of difference in IOP (preoperative � postoperative) for group A was 20.8 � 8.3 mm Hg and that for group B was 17.2 � 13.5 mm Hg. Conclusion: Capacity of IOP reduction of both techniques was found to be comparable and did not show much difference up to the end of 6 months. Mastering technique of group A (modified 揻rown� incision with triangular scleral flap technique) requires more expertise; the simpler straight incision technique provided in group B may be effectively used by the novice and current era Ophthalmologists to combat glaucoma coexistant with cataract.