TY  - BOOK
AU  - Khaled Mohamed Shaker
AU  - Ali Mohamed Taha , 
AU  - Hisham Fathalla Elsheikh , 
AU  - Mohamed Ahmed Fakhry Khattab , 
TI  - Torsional ultrasound modality as a modern technique for cataract extraction / 
PY  - 2011///
CY  - Cairo : 
PB  - Khaled Mohamed Shaker , 
KW  - Basic principles
KW  - History review of phacoemulsification
KW  - Phaco machines
N1  - Thesis (M.Sc.) - Cairo University - Faculty of Medicine - Department of Ophthalmology; Issued also as CD
N2  - 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
ER  -