PRK (photorefractive keratectomy) is a technique of refractive surgery, laser operation of vision. During the operation, the laser performs an ablation of the surface of the cornea to permanently modify its refractive power and restore your vision.
Procedure with PRK
- Anesthesia is obtained by instilling several drops of anesthetic eye drops.
- If an astigmatism correction is planned, the doctor will mark the horizontal axis of the eye with a felt-tip pen.
- The patient is placed on the intervention table and must fix a point.
- The doctor will put on a device (a blepharostat) to hold the eyelids apart.
- He will then remove the very superficial layer of the cornea (the epithelium) by scraping it with a brush or an instrument. He asks the patient to focus on the light point in front of him.
- The laser will start. It is not difficult to keep the eye still for a few seconds. But for added safety, the laser has a fixation system that follows small movements that the patient could not control. The doctor’s hands frame the patient’s face and his voice accompanies the entire procedure. After an exposure of a few tens of seconds, the operation is practically finished.
- Finally, PRK Surgeryexpertsinstil an antibiotic and anti-inflammatory eye drops and then place a soft contact lens as a dressing. Visit com to understand the detail.
If optical aberrations are observed by the ophthalmologist before the operation, it is possible to correct them simultaneously with your operation for the correction of ametropia (myopia or astigmatism).
A sleeping pill, sedatives and eye compresses are prescribed systematically. You can go home straight away after the operation.
A bandage is not necessary. However, it is important not to rub your eye as you may lose the lens. Antibiotic eye drops (drops) should be instilled 4 times a day, directly on the lens, as well as artificial tears.
Pain that varies from patient to patient usually appears within an hour of the operation. You should plan not to work for 3-4 days. A work stoppage certificate will be sent to you the day after the operation.