Different types of LASIK surgery in India and potential risk Associated with them

LASIK is used to replace the cornea under corneal flap. In this process a highly specialized laser is used to treat the refractive errors and improve vision without need for contact lens or glasses. This laser process changes the shape of the cornea, the transparent front covering of the eye.

There are different types of lasers used in treatment. All LASIK surgeries are performed with a particular type of laser, , so in one sense, all LASIK surgeries are same. However, there many laser manufacturers, such as Wavelight, Alcon, Bausch & Lomb, Visx, and Nidek, among others, who have designed different excimer lasers. And then there are different types of laser surgeries that can be performed such as conventional laser treatments and wave front guided treatment.

Conventional LASIK is the removal pattern where the lasers are directly used, based on the glass prescription of the patient. This treatment has fixed parameters for each patient. Though this is effective treatment, but it can causes visuals issues like glare, night vision, glare and halos compare to other treatments. In wavefront optimized, the laser is available on wave light. This treatment is also according to the glass prescription of the patient. But it also has to take into account corneal curvature and thickness.  The laser energy is applied in a unique way in the periphery of the cornea.  This treatment is quite effective in reducing the issues of glare, halos, night visions etc.

 

Wavefront-guided LASIK is like conventional LASIK, LASIK Eye Surgery Delhi  but in this surgery in addition to treatment of patient’s basic refractive error, precise alterations in a patient's eye are also treated. Before this surgery, the special mapping is done to identify any irregularity in patients’ optical system. If these irregularities are severe, they can affect the vision quality, night vision and contrast sensitivity of the person. But if they are insignificant then this surgery is used and treatment is based on the wavefront map generated.

 

LASIK is a very effective surgery Eye Treatment Delhi India and has given excellent results for the patients. However, as is the case with any surgery, it has some potential risks. A patient must be aware of these risks before going for LASIK surgery. After single treatment most patients are satisfied with the results of the surgery .But if one surgery is not able to give the result, then second surgery is performed, to sharpen the vision. This is called enhancement, this surgery is done after many months after first surgery. In some rare cases, a patient may not be able to get the enhancement, if his or her cornea is too thin or has got some abnormal shape after first surgery. Therefore the treatment should be done from experienced doctors with advanced facilities at their clinics.  Patients who use   glasses for reading are especially prone to some changes in their vision after LASIK surgery.