الفهرس 
Mistory of cataract surgeryOnly 14 pages are availabe for public view
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Abstract
The use of phacoemulsification for cataract extraction has increased since Kelman pioneered the method in 1967.
There are advantages of phacoemulsification procedure such as smaller incision, closed irrigation-aspiration system, controlled intraocular pressure and the more frequent use of capsulorhexis.
The aim of this study was to determine the intra operative difficulties in early cases of phacoemulsification.
Phacoemulsitication using four quadrant divide and conquer Shepherd’s technique was performed on thirty patients.
The selection criteria included clear cornea, a functioning pupil that can be dilated to 6 mm or more, evident red reflex, immature cortical and/or nuclear cataract and posterior subcapsular cataract.
The results of this study indicates that phacoemulsification can be perliwined safely and effectively. We feel that our experience is probably a good model for learning phacoemulsification. We consider the following factors essential in ensuring this result.
♦Adequate presurgical experience, during which surgeon can familiarize himself or herself with the equipment.
♦Close surgical supervision by attending experienced in the surgical technique.
♦Careful patient selection especially in the early cases.
♦A surgical technique that is safe and easy to learn.
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•Stuck to one technique
•When and how to convert to ECCE. saving the surgeon and possibly the patient a great deal of discomfort
♦Very good instrumentation.
♦Familiarity with sclera] tunnel, corneal tunnel capsulorhexis are major factors in the rapid learning of the phacoemulsification. As teaching methods, instrumentation. and surgical techniques
improve. we look forward to even better results in future comparable series.
Further studies for evaluating the results of other techniques and follov, up for detection of post operative complications are needed.