PRK and EPI - LASIK Eye Surgery In Delhi
What is PRK? PRK ( photorefractive keratectomy ) is a type of laser vision correction procedure to correct the refractive errors that is… myopia, hypermetropia and astigmatism. PRK was one of the earliest laser eye surgery vision correction procedures and has been performed longer than LASIK which has become more popular than PRK now. Similar to LASIK and other types of LVC procedures corneal reshaping is done using an EXCIMER LASER thus allowing the light rays to properly focus on the retina and achieving a clear vision without spectacles. WHAT IS THE DIFFERENCE BETWEEN LASIK AND PRK In both the techniques the laser used is same and corneal reshaping is also the same but the difference lies in the FIRST step. In LASIK in the first step a flap is made either using a microkeratome or a laser , the thickness of the flap varies between 90 to 130 microns and after the procedure is over this flap is repositioned back. In PRK the flap is not made, instead most superfic...