Laser Eye Surgery Known as PRK

What is the Laser Eye Surgery Known as PRK? 

Another popular laser eye surgery is PRK or Photorefractive Keratectomy. As with other types of laser eye surgery, PRK is a procedure during which the cornea is reshaped. Reshaping of the cornea with PRK is highly effective at restoring vision to 20/20 or better. And for approximately 80% of the patients, quality vision is achieved without the need to wear eye glasses or corrective lenses.

The laser eye surgery PRK differs from LASIK and LASEK in that the laser pulses the top of the cornea, not beneath it. This means it's not necessary to slice a thin hinged flap from the top of the cornea.

The benefits of PRK

Those who benefit from PRK laser eye surgery have mild to moderate degrees of farsightedness, nearsightedness or astigmatism. Fewer complications are other benefits. Slicing the corneal flap can cause problems beforehand if the flap is cut completely off the cornea rather than leaving it hinged. Recovery can also be hampered should the patient rub the eye and cause the flap to dislodge and interfere with the healing process.

The disadvantages of PRK

Oftentimes, PRK laser eye surgery causes more pain. Afterwards, discomfort often continues for several days. Eyes may be irritated and watery resulting in a longer healing time.

PRK laser eye surgery requires several months before 20/20 results are achieved. And even then, there is no guarantee that the patient will attain this level of vision without eye glasses. Halos around images and glare are two additional potential side effects.

Finally, PRK eye surgery generally does not cost any less than LASIK Surgery, with costs averaging around $2,000 per eye.

What is involved with PRK?

Prior to the PRK procedure an eye surgeon will take a complete medical history and perform a thorough round of eye testing to ensure the patient is a good candidate. Then a procedure date is scheduled. 

Patients are given local anesthesia, and in just a few minutes, cool beams of laser are pulsed onto the top of the cornea, continuing until it is properly reshaped. A bandage that mimics a contact lens is put on the eye and remains for several days to allow for healing. During the next several months, regular follow-up visits with the eye surgeon are crucial.

Expect periods of good vision and blurry vision for several weeks. It's possible that glasses will need to be worn, especially at night. Eye drops will keep eyes moist and prevent infection. Operating a motor vehicle won't be possible for several weeks after the PRK procedure. Best vision won't be achieved until a minimum of 6 weeks and may take as much as 6 months.

Selecting an ophthalmologist trained in PRK laser eye surgery is very important. Get referrals, interview several candidates and review the fine print to avoid miscommunication. It's best to avoid using ophthalmologists offering deep discounts and/or who utilize expensive advertising.