Femto-flap Versus SBK Flap,Predictability and Variability

"Under topical anesthesia \[Tetracaine eye drop 0.5%\]. A-90 µm thick flap was done by using Visumax femtosecond laser. The flap hinge was set to be nasally placed. A nasal-hinge flap with 90 µm thickness, 8.8 mm flap diameter, and 90º side cut angles were created with 500 kHz Visumax FSL, 160 nJ energy \[Carl Zeiss, Meditec, Germany\]. The sphero- cylindrical refractive corrections with optical zone 6.5 mm and ablation zone 8.0 mm were done by excimer laser operating system \[Carl Zeiss, Meditec, MEL 90, Germany\]. Automatic iris registration and pupil-tracking system were activated before photoablation. The patient's eyes were examined postoperatively on a slit-lamp biomicroscope and all treatments that were given for home use have been explained in terms of frequency of instillation, possible side effects, and benefits before discharging them on the same day.~Follow up visits were scheduled clearly on printed patients' discharging cards."

"Under topical anesthesia \[Tetracaine eye drop 0.5%\] .A-90µm flaps done using Maria one use plus SBK mechanical microkeratome with a nasal located hinge. The sphero- cylindrical refractive corrections with optical zone 6.5 mm and ablation zone 8.0 mm were done by excimer laser operating system \[Carl Zeiss, Meditec, MEL 90, Germany\]. Automatic iris registration and pupil-tracking system were activated before photoablation. The patient's eyes were examined postoperatively on a slit-lamp biomicroscope and all treatments that were given for home use have been explained in terms of the frequency of instillation, possible side effects, and benefits before discharging them on the same day.~Follow up visits were scheduled clearly on printed patients' discharging cards~."