STUDY OF INCIDENCE OF POSTERIOR CAPSULE OPACIFICATION AFTER MANUAL SMALL INCISION CATARACT SURGERY WITH SQUARE EDGED VERSUS ROUND EDGED INTRAOCULAR LENS IMPLANTATION

Uday Narayan Singh, Punit Parasurampuria

Abstract


Aim: To compare the incidence of Posterior Capsular Opacity in square edged rigid intraocular lens in Small incision cataract surgery. Background: Senile Cataract is most important cause of curable blindness in developing countries. Extra capsular cataract extraction (ECCE) and primary posterior chamber (in capsular bag) intraocular lens (IOL) implantation is the best treatment for visual rehabilitation of cataract patients. PCO is a nagging complication of ECCE and primary IOL implantation. PCO is treated by Nd:YAG laser capsulotomy, but can also lead to various ocular complications. As a result, prevention of PCO is very crucial and challenging task. Materials & Methods: This study was conducted in the department of Ophthalmology of Jawahar Lal Nehru Medical College and Hospital, Bhagalpur, Bihar. 150 patients between the age of 50 to 80 years, suffering from senile cataract were selected for this study and were divided into two groups- Group A and Group B. In both the groups, manual small incision cataract surgery was performed. Patients of Group A were implanted with round edged IOL and Group B with square edged IOL. Results: At the end of one year postoperatively there was decrease in visual acuity of two lines or more on Snellen’s chart in 15 (20%) cases of Group A and in 6 (8%) cases of Group B due to posterior capsule opacification. Conclusion: Posterior capsule opacification is a nagging complication of modern-day cataract surgery. But recent advances in IOL design have greatly reduced the incidence of PCO. Square edged PMMA IOL have better efficacy compared to round edged IOL in reducing PCO.


Keywords


Posterior capsule opacification, manual small incision cataract surgery, round edged PMMA IOL, square edged PMMA IOL.

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