Refractive errors occur when light does not focus correctly on the retina, causing blurred or unfocused vision. Refractive surgery (Laser or ICL) modifies the shape of the cornea, the transparent front layer of the eye, to achieve correct light focus and restore clear vision. This, in turn, improves the patient’s visual quality, reducing their dependence on glasses or contact lenses.
Benefits of Refractive Surgery:
- Significant improvement in vision: Most patients experience a notable improvement in their vision after refractive surgery, reducing or eliminating the need for glasses or contact lenses.
- Quick and painless procedure: Refractive surgery is usually a quick and painless procedure, taking between 15 and 30 minutes per eye.
- Rapid visual recovery: In most cases, visual recovery is rapid, and patients notice a significant improvement in their vision in the days following the procedure.
- Improved quality of life: Being free from glasses or contact lenses can significantly improve the quality of life, allowing for greater freedom and comfort in daily activities.
There are different techniques to correct these refractive errors:
Laser Surgery with LASIK and PRK
Both procedures are used to modify the shape and curvature of the cornea using a laser, with the goal of correcting diopters and allowing proper image focus on the retina.
- LASIK (Laser-Assisted In Situ Keratomileusis): In this procedure, a thin flap is created in the cornea using a special laser. Another laser is then used to reshape the cornea and correct the refractive error. The flap is repositioned after the procedure.
- PRK (Photorefractive Keratectomy): This technique does not require the creation of a flap. Instead, a thin layer of the cornea is removed using an excimer laser, and its shape is reshaped to correct the refractive error.