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Refractive Surgery
Vision correction surgeries are done to provide patients independence from glasses and contact lenses. These surgeries can be cornea based or lens based. Cornea based surgeries utilize lasers to reshape the cornea and include LASIK, PRK and SMILE. Lens based surgeries include implantable collamer lenses and refractive lens exchange.
Type of refractive surgery is individualized based on the patient, degree of refractive error, corneal topography and thickness; and anterior chamber features.
Types of Vision Correction Surgeries
LASIK
Laser in-situ keratomileusis (LASIK) is the most popular vision-correcting surgery. Through this procedure, we can correct your myopia (nearsightedness), hyperopia (farsightedness), and, astigmatism.
Lasik is bladeless procedure and is customized to individual patient’s eye.
During the procedure, a thin flap of your cornea is cut using advanced laser technology and then the cornea is reshaped with the help of a laser. The flap of your cornea is put back and sealed.
It is an outpatient procedure and takes around 15 minutes for each eye. Talk to your doctor if you have any ocular or systemic disease or if you take any kind of drugs.
Source: American Academy of Ophthalmology
Source: American Academy of Ophthalmology
PRK
Photorefractive keratectomy (PRK) is one of the time-tested surgical methods for refractive error correction. Patients with myopia (nearsightedness), hyperopia (farsightedness), and, astigmatism can undergo PRK for vision correction. For patients with high refractive error who may not be safe LASIK candidates, PRK can often be an alternative.
During this surgery, the first layer of the cornea is removed and then the cornea is reshaped with the help of a laser. Bandage contact lenses are then placed to help with epithelial healing.
Implantable Collamer Lens (ICL)
It is an implantable contact lens that is placed in front of your eye’s natural lens. Patients who are not suited for LASIK or PRK may be good candidates for this procedure as ICLS can be used for higher refractive error. ICLs correct myopia and myopic astigmatism.
Source: American Academy of Ophthalmology
Source: American Academy of Ophthalmology
Refractive Lens Correction
It is an alternative procedure of vision correction for those who are not eligible for LASIK or PRK. Its procedure is similar to cataract surgery. A new, artificial lens is placed in place of the eyes’ natural crystalline lens. It can correct myopia, hyperopia, and astigmatism.