1. Department of Ophthalmology, Faculty of Medicine Tanta University Tanta Egypt
2. New England Eye Center, Tufts Medical Center Tufts University Boston Massachusetts USA
3. Department of Geomatics Engineering University of Calgary Calgary Canada
4. Department of Electronics and Electrical Communications Engineering Tanta University Tanta Egypt
5. Department of Electrical Engineering and Computer Science, Research Laboratory of Electronics Massachusetts Institute of Technology Cambridge Massachusetts USA
6. Department of Ophthalmology, Faculty of Medicine Cairo University Cairo Egypt