Khaled Mohamed Shaker <br/><br/>
Torsional ultrasound modality as a modern technique for cataract extraction /  
 الموجات الصوتية الالتوائية كتقنية حديثة لعلاج المياه البيضاء 
Khaled Mohamed Shaker ; Supervised Ali Mohamed Taha , Hisham Fathalla Elsheikh , Mohamed A. Fakhry Khattab 
 - Cairo :   Khaled Mohamed Shaker ,   2011 
 - 92 P. :   facsimiles ;   25cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Medicine - Department of Ophthalmology 
<br/><br/> Those cataracts need high energy to be emulsified , which means high ultrasound power and duration meaning longer surgery times , which could prove more dangerous for the cornea . To minimize the energy delivery and duration , we can use the quick - chop technique that provides ultrasound in an engery - efficient manner . It allows less use of energy and increases the effective emulsification 
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<br/><br/><label>Subjects--Index Terms: </label>Basic principles  History review of phacoemulsification   Phaco machines