This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cornea, Subject name: Ophthalmology
SMILE is 
Select and explain. 
A. Bladeless flap LASIK, B. Blade LASIK, C. Bladeless Flapless LASIK, D. Blade based flapless LASIK
C: Bladeless Flapless LASIK
Answer: C: Bladeless Flapless LASIK 
Explanation: SMILE is bladeless Flapless LASIK Types of LASIK *Conventional LASIK: The LASIK flap is made by microkeratome blade and then EXCIMER laser is used for stromal ablation *Epi LASIK or Photorefractive Keratectomy: Laser ablation is done after removal of epithelium without the creation of flap *SMILE- is small incision lenticular extraction , a new technique in lasik using femtolaser. No Flap is made and it is bladeless. *I lasik: bladeless lasik. Creation of Flap is by Femtolaser LASIK procedure