Shahid Azeem Mirza, Arif Memon, Abdullahel Mutt Aqi, Amir Hussain, Asad Azim Mirza.
Dynamic of the phacoemulsification in various type of cataracts.
Pak J Surg Jan ;28(3):229-36.

Objective: The phacoemulsification has certain advantages which are small incision surgery reduce postoperative astigmatism: less infl ammation and more rapid viual rehabilitation. The main Phacoemulsifi cation is to remove the cataractous lens through a small incision. It is usually performed under local anaesthesia either with periocular infi ltration or a retrobullar infiltration. Cataract is emulsified (liquefied) with ultrasonic energy through a 3.2. mm limbal incision with subsequent implantation of foldable intraocular lens. The 3.0 mm incision provides a more secure wound , less subjected to many of the complications of wound healing related to the large incision cataract surgery. Th us it leads to less astigmatism, short hospitalization and rapid return to normal life. The patients were followed up at 1st week, 3rd week, 6th week and 3rd month after the date of surgery. Study Design: Comparative descriptive study. Setting and duration: This study was carried out at Ophthalmology Department of Jinnah Medical College Hospital, Karachi from January 2007 to December 2009. Subjects : Dynamic of the Phacoemulsifi cation Results: The results of Phacoemulsifi cation of 50 eyes in 50 patients were analyzed for their phacodynamic aspects. These were divided into two groups of 25 eyes each. All underwent Phacoemulsifi cation. Cataract with nuclear sclerosis grades 1 – 2 were included in group A while grade 3 and 4 were included in group B. The aspects studies were the variations of diff erent parameters of Phacoemulsifi cation in different grades of nuclear sclerosis. Conclusions: It is necessary for the surgeon to have a solid understanding of dynamics of the phacoemulsifi cation such as Fluid Dynamics and Cutt ing Effi ciency. Phacoemulsifi cation is the method that results in most rapid return of visual function. There is , however, a learning curve and every surgeon must gain necessary exoertise in phacoemulsifi cation procedure and learn to avoid complications before he/she can safely employ this procedure for his or her cataract patients.

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