الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Femto –LASIK has been used worldwide since its introduction because of improved safety, reproducibility, and planar flap thickness. The all-in-one femtosecond laser procedure, SMILE provides good outcomes in terms of refraction as well as additional benefits could reduce all flap related complications of LASIK, such as dryness, epithelial ingrowth under flap edge, long term risk for traumatic flap dislocation, and corneal ectasia, which may develop during the years following surgery. This study was carried out on 100 eyes of 50 patients of either sex having myopia with or without myopic astigmatism. None of the patients had previous ocular surgery. Eyes are classified to 2 groups; The SMILE group included 50 eyes of 25 patients who underwent Femto-SMILE, while the Femto-LASIK group included 50 eyes of 25 patients who underwent Femto-LASIK followed by refractive treatment with MEL 80™ excimer laser platform. Every patient was subjected to complete ophthalmologic examination; including UCVA and BCVA, Pentacam, corneal sensation using Cochet-Bonnet corneal esthesiometer. SMILE was performed under topical anesthesia (eye drops) with VisuMax femtosecond laser which creates the lenticule ,while the Femto-LASIK was performed under topical anesthesia using VisuMax to fashion a flap followed by refractive treatment with MEL 80™ excimer laser platform. Postoperatively, the patients were followed up at one week, one month and up to six months. In each follow up visit the patient was examined regarding uncorrected and best corrected visual acuity, manifest refraction and slit lamp examination and corneal sensation. Both Femto- LASIK and SMILE procedure are safe and efficient in treating myopia and myopic astigmatism.
Regarding the Corneal sensation was significantly decreased after both SMILE and Femto-LASIK procedures at postoperative 1 week, 1 month, 3 month, and 6 months. In addition, the decrease in corneal sensation was more pronounced after Femto-LASIK surgery than it was after SMILE surgery until 6 months there was no difference.