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What is PRK.

"PRK is the procedure done with the excimer laser to reshape the cornea and correct the vision. It has fewer complications as compared to LASER. Unlike LASER, the PRK procedure does not require the formation of a corneal flap thereby reducing the complications related to corneal flap. PRK was the first procedure for correcting the curvature of cornea which was approved by US FDA

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What is PRK.

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  1. Lasik Surgery Specialist in delhi Dr. Rajiv Bajaj MBBS, MS – Ophthalmology

  2. 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. Pro What is PRK?

  3. 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 superficial layer of the cornea called epithelium ( only 45 to 50 microns thick ) is scrapped /removed to expose the deeper corneal layers which is then treated with excimer laser to reshape the cornea. The epithelium regrows and repairs itself within a span of 3 to 4 days 1after the surgery. So PRK is a flapless technique and since the flap is not made, the tissue saved adds to the residual corneal stromal bed thickness thus making PRK a very safe procedure in terms of long term corneal biomechanical stability.

  4. Who are the best candidates for PRK?…in other words what are the indications for PRK 1. Patients having relatively thin corneas where lasikcan not be done. In patients with thinner corneas making a flap ( in the first step of lasik ) may weaken the cornea later on thus it is better to avoid lasik in these patients and PRK is a preferred procedure. All those patients who are into contact sports etc , here a possible later trauma to the flap is theoretically avoided. 2.

  5. https://www.lasikdelhi.com/

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