TY - BOOK AU - Esraa Mohamed Adel Mohamed Elmayah AU - Mahmoud Abousteit , AU - Mohamed Hosny , AU - Mohamed Karim Sidky , TI - Evaluation of femtosecond assisted implantation of MyoRings in cases of keratoconus / PY - 2013/// CY - Cairo : PB - Esraa Mohamed Adel Mohamed Elmayah , KW - Femtosecond KW - Implantation of MyoRings KW - Keratoconus N1 - Thesis (M.Sc.) - Cairo University - Faculty of Medicine - Department of Ophthalmology; Issued also as CD N2 - Purpose ; To evaluate the clinical outcome after implantation of the MyoRings (Dioptex GmBH Linz Austria) by means of femtosecond laser technotogy in eyes with keratoconus . Design : prospective non - randomized interventional clinical study . Main outcome measures : uncorrected distance visal acuity (UCVA) best corrected visual acuity (BCVA) manifest refraction keratometry corneal asphericity and pachymetry ER -