AbstractBackground: Cataract is the most common cause of preventable blindness in the world. Whereas cataract surgery is the most common surgical procedure in all of medicine. With advent of phacoemulsification, there is faster optical and physical rehabilitation of the patient. Aim: This study was done to know the incidence and type of intraoperative complication in phacoemulsification and the correct method to manage these complication. Material and Method: The duration of study is 1 year. It is prospective type of study comprised 100 patient who were operated by phacoemulsification method. The method to choose patients were simple random sampling method and follow up period for patients was 6 weeks. Results: The maximum number of patients came under V to VI decade, females proportion was higher, being 57 in no. (57%) as compared to males 43%. The most common type of cataract was posterior subcapsular cataract in this study and it constitutes 35% eyes (35%). BCVA preoperative was 6/12 to finger counting at 1 m. 71% patients had preoperative BCVA of 6/36 or better. Total phaco time was less than 1 min in 33% of patients and in 60% of patients it was in between 1 to 2 minutes. Intraoperative complication occurred in 18% of total cases. The most common complication is emulsifying the nucleus and the conversion rate to convert in small incision cataract surgery was 5% (in 5 cases). The complication rate was more higher grade of nucleus density. The post operative BCVA was > 6/18 in 96% of cases and > 6/9 in 81% of cases. Conclusion: With the advent of better technology in phaco machines and better techniques in phacoemulsification surgery, the complication rate is less and it can be accepted as routine method.

Key word: Phacoemulsification, best corrected visual acuity, nucleus grades, posterior subcapsular cataract.