How does PRK work?
The thin outer layer of the cornea (called the epithelium) is removed before the surgeon reshapes the underlying corneal tissue with an excimer laser. By removing tiny amounts of tissue from the surface of the eye, your surgeon is able to correct your vision. The main difference between PRK and LASIK is the first step of the procedures. In LASIK, a thin flap is created on the cornea with a femtosecond laser. This flap is then lifted to reveal the underlying corneal tissue and then replaced after the cornea is reshaped with an excimer laser.
Healing times are generally a little longer for PRK than for LASIK surgery, because the outer layer of the cornea needs to grow back again. It usually repairs itself and grows back within a few days. A protective lens is placed over the eye after surgery to help the healing process.
What to expect from PRK
PRK is quick, painless and highly effective, so there’s no need to feel nervous. Even if you are a little worried, our really friendly, highly trained team will make sure you feel completely at ease before, during and after your procedure.
First, anaesthetic eye drops are administered to numb the eye. Then, a device is gently placed on the eye to help keep it open. The surgeon will then remove the microscopic surface layer of the cornea, so the layers of the cornea that need to be treated are revealed.
An excimer laser is then applied to the cornea to precisely reshape the surface of the eye. Afterwards, a protective lens is placed over the eye to help it heal.
You will need to rest for a short period after your surgery, then you can return home. Naturally, someone else will need to drive you.