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PRK

PRK Vs LASIK

Of the surgeries that are popular to solve eye problems, Photorefractive Keratectomy or PRK for short is among the prominent. PRK involves the reshaping of the region of the eye called the cornea using laser technology. Many years after the advent of PRK, LASIK was developed. Essentially PRK Vs. LASIK surgeries are similar as they utilize the same laser. The differentiating factor is in the method of exposure of the stroma or the middle part of the cornea.

During PRK the epithelium or top part of the cornea has to be scraped to expose the aforementioned middle layer. During LASIK, a tiny flap of the stromal layer is cut and exposed.

PRK vs. LASIK

  • In LASIK surgeons use the microkeratome a type of instrument to cut the cornea.
  • PRK vs. LASIK - stitches are not used in LASIK. This is because the flap stays fixed in place due the natural pressure of the eyes
  • PRK vs. LASIK - Eyedrops are used in LASIK surgery and the patient only needs to use eye drops for a single week. Routine activities can resume in as little as three days.
  • PRK vs. LASIK - In LASIK the number of hours of discomfort is minimal. The first layer of the eye heals in less than 6 hours.
  • LASIK has a disadvantage in the fact that the additional process required which is the creation of a flap, takes a minute.
  • As described earlier PRK involves the removal of the top surface layer of the cornea which is also called the epithelium. When the cornea is exposed a computer aided layer is used to reshape the cornea.
  • One PRK vs. LASIK advantage is that neither needles nor incisions are required.
  • Another feature of PRK is that contact lenses are worn by the patient to avoid infection. The lenses can be removed at a maximum of 5 days after surgery. The surface layer then starts to regenerate and complete regeneration is complete in about 4 months.
  • PRK vs. LASIK - Most of the pain fibers in the eye are located in the cornea so in PRK So the patients usually have to take pain medication for about 2 days after the procedure.
  • PRK vs. LASIK - PRK has a risk of high infections and irregular healing response which can usually be treated with prescriptions from doctors.