RANDOMIZED CONTROLLED TRIAL OF SURGICAL DATA MAKING THE COMPARISON OF POST OPRATIVE ASTIGMATISM WITH OPENING OF 3.5MM VS 6MM AFTER STITCH LESS CATARACT REMOVAL SURGERY

Objective: Use of surgical data making the comparison of post-operative astigmatism with opening of 3.5mm vs 6mm after stitch less cataract removal surgery Background: Cataract surgery with small and big opening is beneficial due to less instrumental expenses and Disposability. At the moment for advanced and mature cataract it appears a better and suitable treatment. Declaring of surgically induced astigmatism (SIA) superior has become a public health problem, so the comparative study of surgically induced astigmatism is much important. By keeping in view the limitations of such studies in Pakistan this study is designed to compare the post-operative SIA with stitch less 3.5mm & 6mm incision surgery that is SICS (Small Incision Cataract Surgery). Methods: Study design: Randomized Controlled Trial. Setting: LRBT Free Secondary Eye Hospital North Karachi. Duration: 6 months’ duration. Procedure: For the astigmatism and surgical efficiency and related adverse effects after stitch less cataract extraction Post-Operative cataract patients were examined by means of: (a) With cut size 3.5 mm or more (b) With cut size 6 mm or more The segregation criteria include all patients with past surgical history, heart disease, renal failure and all other eye diseases whereas all the patients were above 18 years of age and included both male and female with stitch less cataract extraction surgery.Results: Via hospital record system the records of total 140 patients were collected. The average age of the patients was 54 + 9. 25 of the patient were between the ages of 36 years to 45 years. The visual activity was measured as zero when it was less than1/60, as one when it is less than 3/60 to 1/60, as two when it is less than 6/60 to 3/60, as three when it is Less than 6/18 to 6/60 and four when it is 6/6 to 6/18. Post operatively with repeated visits the uncorrected visual acuity has increased and the maximum of the increase was observed in group 1 patients with 3.5 mm opening.Conclusion: It might be concluded that SIA is less likely to be occurring in the stitch less 3.5mm surgery. However, 6mm SICS is more cost effective. Keywords: stitch less surgery SICS (Small incision Cataract Surgery), Cataract, surgically induced astigmatism (SIA)