Nihal Abdelfatah Elghryany <br/><br/>
Intraoperative corneal thickness during corneal cross linking in keratoconus /  
 سمك القرنية اثناء عملية تثبيت القرنية فى حالات القرنية المخروطية 
Nihal Abdelfatah Elghryany ; Supervised Yehia Salah Eldin , Ahmed Sherif , Lamia Samy 
 - Cairo :   Nihal Abdelfatah Elghryany ,   2015 
 - 121 P. :   facsimiles ;   25cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Medicine - Department of Ophthalmology 
<br/><br/> OBJECTIVE: To monitor the changes in corneal thickness during accelerated pulsed corneal collagen cross-linking procedure by using dextran free riboflavin solution with HPMC in keratoconus patients. MATERIALS AND METHODS: The central corneal thickness measurements were obtained by pachymetry before epithelial removal, after epithelial removal, following the instillation of dextran free riboflavin solution with HPMC for 10min, and after 8min of pulsed ultraviolet A irradiation (30 mW/cm2 surface irradiance for total treatment of 7.2J/cm2). RESULTS: Twenty eyes of eleven patients with progressive keratoconus (n=20) were included in this study. The mean central pachymetric measurements were 506.8±35æm before epithelial removal, declined to a mean of  474.9 ±40 æm  after de-epithelialization of the cornea, declined further to a mean of 445.7 ±31æm following 10min instillation of dextran free riboflavin solution with HPMC and 444.65±35æm following 8min of pulsed ultraviolet A irradiation to the cornea 
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<br/><br/><label>Subjects--Index Terms: </label>ACXL CACXL  Hpmc