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PRK/LASEK

Revivacare offers advanced PRK and LASEK procedures, providing tailored solutions to correct vision issues such as myopia, hyperopia, and astigmatism with precision and rapid recovery.

Overview

These two procedures are performed to correct vision problems, including hypermetropia, myopia, and astigmatism. The misshape of the cornea causes these three vision problems. There are two widely used techniques for treating them: PRK and LASEK.

PRK

Photorefractive Keratectomy

  • Procedure: In PRK, the outer layer of the cornea (epithelium) is removed completely using a surgical instrument or a laser.
  • Reshaping: After the epithelium is removed, a laser is used to reshape the exposed corneal tissue to correct refractive errors such as myopia (nearsightedness), hyperopia (farsightedness), and astigmatism.
  • Recovery: The epithelium regenerates naturally over a few days to weeks after surgery. During this time, a bandage contact lens may be worn to protect the eye.
  • Candidates: PRK is suitable for patients with thin corneas or those who are not suitable candidates for LASIK due to corneal thickness issues.
  • Advantages: Less risk of complications associated with the corneal flap used in LASIK, making it preferable in certain cases.

LASEK

Laser Epithelial Keratomileusis

  • Procedure: LASEK is similar to PRK but involves loosening the outer layer of the cornea (epithelium) with alcohol solution before it is moved aside rather than completely removing it.
  • Reshaping: Once the epithelium is moved aside, a laser is used to reshape the corneal tissue underneath to correct the refractive errors.
  • Recovery: After the corneal reshaping, the epithelium is placed back in its original position and a bandage contact lens is placed over the eye to aid in healing.
  • Candidates: LASEK is suitable for patients with thinner corneas or those who may not be suitable for LASIK due to corneal anatomy.
  • Advantages: LASEK may offer faster visual recovery compared to PRK due to the preservation of the epithelial layer.

Both PRK and LASEK are effective in correcting refractive errors, and the choice between them depends on factors such as corneal thickness, overall eye health, and the specific needs of the patient. These procedures are typically outpatient surgeries performed under local anesthesia, and recovery times can vary from a few days to several weeks, during which vision gradually improves as the eye heals.

FAQ

What are PRK and LASEK procedures?

PRK (Photorefractive Keratectomy) and LASEK (Laser Epithelial Keratomileusis) are surgical techniques used to correct refractive errors such as myopia, hyperopia, and astigmatism by reshaping the cornea.

PRK involves the complete removal of the outer layer of the cornea (epithelium) before corneal reshaping with a laser. In contrast, LASEK loosens the epithelium with an alcohol solution, moves it aside temporarily, performs corneal reshaping, and then repositions the epithelium.

PRK is suitable for patients with thin corneas or those not eligible for LASIK due to corneal thickness issues. LASEK may be preferable for patients with thinner corneas or specific corneal anatomy concerns.

PRK may involve less risk of complications associated with the corneal flap used in LASIK, making it a preferred choice in certain cases.

After PRK, the epithelium regenerates over several days to weeks, aided by a bandage contact lens. LASEK typically offers faster visual recovery due to the preservation of the epithelial layer, with similar post-operative care involving a bandage contact lens.

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