LASIK is a well known surgery that helps to correct vision in people with conditions of near sight, far sight or astigmatism. It is the best vision correcting surgery across the globe that works in reshaping the cornea which leads the light to focus on the retina.
During the procedure, the surgeon creates a flap in the cornea using the microkeratome and then pulls back the flop to remove the underlying tissue and then finally excimer laser ablates the cornea in the pre-specified pattern based on the patient’s condition.
Types of LASIK procedure
There are varieties of laser eye surgeries used by the ophthalmologists in correcting the refractive index of the patient’s eye. The three different laser ablations that are popular these days are:
Conventional LASIK – here the procedures are done based on the patient’s glasses prescription with the fixed parameters for the patients.
Wave-front optimized LASIK – this is the eye surgery based on the wavelight laser. Though this is also based on the patient’s glasses prescribed to an extent, it also takes into the corneal curvature and thickness of it into consideration and thereby applies laser in a unique fashion on the periphery of cornea.
Wave-front guided LASIK – this is also known as custom LASIK and works similar to that of the conventional LASIK – the procedure includes treating the refractive error of the patient along with the alterations in eye.
Topography – guided LASIK – here it uses the most advanced mapping technology to provide a highly personal and unique treatment for the eyes to get the clear vision.
PRK – Photo refractive keratectomy – that involves the excimer laser on the cornea without making the flap. And thus it has now emerged as the most favourable choice among the patients with thin cornea and other critical conditions.
Recovery time after LASIK surgery
PRK – the healing process for the PKR surgery is longer when compared to that of the other LASIK surgeries as the epithelium is removed from the surface of the eye. In general, the epithelium takes four to five days for the repair and during this recovery time the patient might experience discomfort and blur vision after the PRK surgery. In a week the vision gets clear up and might take several weeks to months to become extremely normal. The clarity and crispness of the vision after the PKR surgery will improve for three to six months and become stable based on the patient’s condition.
Other LASIK procedures
The recovery time for the laser eye correction varies based on the patient’s condition as well as the procedure. LASIK and LASER typically heal quickly when compared to that of PRK procedure.
For epi-LASIK , there is often pain and tearing patients experience as there is no epithelial covering. The pain disappears after a week or so as the cells tends to cover the corneal surface of the eye. However, as the initial layers of the epithelial cells are not smooth enough to get repair, it might take several months to regain the smoothness. Thus the recovery period might be little longer than the usual LASIK procedure.
While the wavefront guided and optimized procedure has the lesser procedure by using the femtosecond laser technology and there by the healing process is quicker. The procedure and the recovery time for these two technologies are very short and the patient can get discharged from the bed in a day or two. The surgery time takes 5 to 15 minutes and the recovery time is also comparatively quicker than the other methods. and the recovery time is also comparatively quicker than the other methods.