PRK (Photorefractive Keratectomy)

PRK (Photorefractive Keratectomy)

• PRK (Photorefractive Keratectomy) was the original laser refractive surgery to correct nearsightedness, farsightedness, astigmatism and age-related farsightedness using an excimer laser to reshape the cornea without flap creation. 

• PRK (Photorefractive Keratectomy) was the original laser refractive surgery before LASIK and even today it continues to demonstrate a high level of safety and effectiveness.

• PRK an alternative option of surgery for patients with thin corneas, and not a suitable candidate for other corneal refractive surgery.

• Career opportunities, such as becoming a pilot, military and police officer.

PRK Technology

• The latest Mel 80 Excimer Laser from Carl Zeiss, Germany

PRK procedure

• A special solution dissolves the corneal epithelium.

• An excimer laser then reshapes the cornea.

• A contact lens is put on to cover the surgical wound for 3-5 days in order to reduce the discomfort and improve the healing time of the cornea.

PRK may be suitable for patients with these certain characteristics

• Patients with certain eye characteristics and eye diseases.

• Thin cornea and unsuitable for Super ReLEx (SMILE Pro), ReLEx SMILE, FemtoLASIK and LASIK

• Eyesight of myopia and astigmatism combined, not exceeding -8.00 Diopter

• Recurrent erosion in the cornea

• Dry eyes

• Occupational requirements, such as becoming a pilot, military and police officer

• Non-average corneal curvature.

Advantages of PRK

• Suitable for patients with thin corneas.

• Reduces the risk of flap complications for patients with small and deep-set eyes.

• No cutting of corneas.

• Career opportunities, such as becoming a pilot, military and police officer.

Limitations of PRK

• Wounds take longer to heal than other laser vision correction procedures.

• Contact lens wear is required after surgery for 3-5 days to promote wound healing.

• Follow-up exams after PRK surgery during the first week will be more frequent than other types of refractive surgery.

• Patients often feel eye discomfort for days after the procedure. It is common to experience irritation, discomfort, stinging, difficulty with opening the eyes, sensitivity to light, redness and watery eyes. The degree of these symptoms varies greatly between individuals but is considered normal.

PRK (Photorefractive Keratectomy) is a laser refractive surgery used to correct various vision problems without creating a corneal flap, suitable for those with thin corneas. It involves reshaping the cornea with an excimer laser and requires contact lenses post-procedure to aid healing.