PRK stands for Photorefractive Keratectomy, which is a surgical procedure used to correct refractive vision errors such as nearsightedness (myopia), farsightedness (hyperopia), and astigmatism. It is a type of laser eye surgery that aims to reshape the cornea to improve visual acuity.
During the PRK procedure, an excimer laser is employed to gently remove the outer layer of the cornea, also known as the epithelium. This allows direct access to the underlying corneal tissue. Once the epithelium is removed, the laser is applied to reshape the cornea by precisely removing tiny amounts of tissue. By altering the shape of the cornea, the eye's focusing power is corrected, resulting in improved vision.
PRK is a suitable option for individuals who may not be eligible for other types of laser eye surgeries due to factors such as thin corneas or irregular cornea curvature. Additionally, PRK eliminates the need to create a corneal flap, which is necessary in other procedures like LASIK.
Following PRK surgery, patients may experience discomfort and visual disturbances as the cornea repairs and heals. However, over time, the eyes typically recover and adapt to the new corneal shape, resulting in improved vision.
It is important to consult with an experienced ophthalmologist to determine if PRK is the most appropriate option for correcting vision errors based on an individual's specific circumstances.
