When laser vision correction was performed without the corneal flap, as in PRK (photorefractive keratotomy), patients experienced considerable discomfort and a delay in visual acuity. So in LASIK, the surgeon first creates a micro-thin flap of corneal tissue and folds it back to prepare the eye for the second step, where an excimer laser is used on the inner cornea to correct vision. This two-step process allows for rapid visual recovery with little or no patient discomfort, and is credited with the popularity and growth of the procedure worldwide.
The differences between different LASIK procedures is on the first step of this two step procedure-how the flap is created. In Conventional LASIK, an instrument known as a microkeratome, which is a hand held, high speed oscillating blade, is used to create the micro thin flap. Most of the complications in the LASIK procedure, have their origins in the use of this hand held blade instrument. Bladeless LASIK, on the other hand, uses a laser known as a femtosecond laser, to create the micro-thin flap. This is also called intralase lasik or i-lasik or femto-LASIK. In Bladeless LASIK, the entire process is automated, and is much safer, more precise and smoother overall for the patient.
Bladeless LASIK is offered by New Vision Laser Centers in Ahmedabad, Vadodara, Mumbai, Hyderabad and Surat, besides other centers of Centre for Sight including Delhi, Meerut and Indore.