PRK stands for PhotoRefractive Keratectomy (PRK). Instead of creating a flap, I gently remove the surface cells of your cornea. The Mel 90 Excimer laser reshapes the corneal surface directly; meaning that healing takes a few days while the surface layer cells or epithelium grows back. Because of the slower recovery time of PRK, I normally use PRK if there is an associated medical reason why this method would be preferable for treating your spectacle error. PRK has confusingly been renamed by some as LASEK (laser in situ epithelial keratomileusis), TransPRK (transepithelial PRK), and ASLA (advanced surface laser ablation) as a marketing ploy by untrained surgeons at discount centres that cannot perform LASIK and SMILE. Essentially, they are variations on the same procedure: a surface procedure requiring the epithelium to be removed and then grow back over the laser reshaped surface. I perform all versions of PRK that is suitable to a specific patient.
PRK was the laser refractive procedure of choice prior to the development of LASIK. It involves applying the excimer laser beam directly to the surface of the cornea. PRK can be associated with slightly more discomfort and longer convalescence than LASIK. However, it causes less thinning of the cornea and is recommended for some patients with thin and irregularly shaped corneas.
If you are considering PRK laser eye surgery, you probably have many questions, especially seeing that there are so many options. I offer all forms of laser eye surgery.
Some of the most frequent questions I get asked are addressed here. This information is not intended to replace a consultation with myself and our clinical optometrist.
Eligibility for PRK laser eye surgery depends on many factors. I mostly recommend PRK laser eye surgery for patients who have thin and oddly shaped corneas and who are not suitable candidates for LASIK or SMILE Pro laser eye surgery . Only myself and our clinical optometrist can determine whether PRK laser eye surgery or possibly another treatment option is best suited for you after going through a comprehensive pre-operative assesment.
PRK laser eye surgery is suitable for patients with thin corneas or who have corneal scars who would otherwise not be suitable for LASIK or SMILE laser eye surgery. It requires no flap so flap complications are avoided. It is also the most economical laser eye surgery procedure to undergo. Patients with irregularly shaped corneas are also more suitable for PRK laser eye surgery.
With PRK, the top layer of the cornea (epithelium) is manually removed after applying alcohol to the cornea. The exposed deeper layers of the cornea are then lasered using an excimer laser. PRK has the disadvantage of pain and a long healing process with stabilisation of visual acuity takes longer than SMILE Pro. PRK is not recommended for the treatment of severe near-sightedness as it can cause an opacification of the cornea. SMILE laser eye surgery also requires no flap. The recovery period and experience is similar to LASIK which is much more comfortable than PRK.
Complications after PRK are extremely rare, but cannot be completely ruled out. PRK is generally regarded as the easiest form of laser surgery to perform as the complication rates are so low. As with all medical procedures, there is always a risk of possible side effects. Your eye doctor will discuss these with you.
If you wear contact lenses, I recommend switching to glasses a few weeks before surgery to ensure an accurate result. You are advised not to apply makeup, lotions or perfume the day you have surgery. Also, you must have a driver to take you home afterward.
PRK laser eye surgery itself takes less than 10 minutes for both eyes to be complete.
A protective bandage contact lens and eye shield are placed over the eyes to avoid rubbing it and to assist with discomfort and healing. The bandage contact lenses are placed on the eye to protect the corneas. Eye drops and analgesic medication are prescribed to prevent infection and aid the healing process. A post-op examination the next day and again on day 5-7 is customary, as are further examinations for the following weeks or months until full recovery and clear vision has been restored.
You will be able to resume most of your normal activities and return to work within 2 weeks following the PRK laser eye surgery procedure.
Full visual recovery usually takes two to three weeks.
The cost of PRK at Crystal Eye and Laser Centre is $6900. Most insurance companies do not cover the procedure costs but certain health insurers cover the whole cost or part of the cost on certain plans.
Whether you are ready to take the plunge into a world of crystal clear vision, or just have a few questions for me, feel free to drop me a line.
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