An Overview of Photorefractive Keratectomy: Indications, Benefits, and Complications
Photorefractive keratectomy (PRK) is a laser eye surgery procedure that is used to correct vision problems such as nearsightedness, farsightedness, and astigmatism. It is similar to another laser eye surgery procedure called LASIK, but there are some key differences between the two.
Indications for PRK:
Nearsightedness (myopia)
Farsightedness (hyperopia)
Astigmatism
Benefits of PRK:
Can correct a wide range of vision problems
Can be performed on patients who are not suitable candidates for LASIK surgery (e.g. those with thin corneas)
Can be used to correct vision in patients with certain occupations or hobbies (e.g. pilots, athletes) that may not be suitable for LASIK surgery due to the risk of injury to the corneal flap.
Complications of PRK:
Pain and discomfort after the surgery
Light sensitivity
Blurred vision
Dry eye
Halos or glare around lights
Under- or overcorrection of vision
Delayed healing
Infection (rare)
PRK is generally considered to be a safe and effective procedure, but as with any surgery, there are risks and potential complications. It is important to discuss these risks and any concerns with your ophthalmologist before deciding whether PRK is right for you.
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