Visual refractive errors are a leading cause of reversible visual impairments the world over, and corrective refractive surgery is one of the most frequently performed ocular surgeries globally. Eye ailments like Myopia (nearsightedness), Hyperopia (Farsightedness), Astigmatism, and Presbyopia are a few common forms of refractive errors, and their increasing occurrence across the world has made these major ocular diseases.
Some people might consider refractive surgery as a cosmetic procedure, but the effects of refractive surgery on patients extend beyond making them spectacle free. A successful refractive surgery results in an improved quality of vision and enables them to work to the best of their abilities. Refractive eye surgery also helps people have an enhanced daily working performance.
Types of Refractive Surgeries
Refractive surgery is defined as a surgical procedure undertaken to correct or adjust the focusing ability of eyes. It is performed by reshaping the cornea or the clear round dome situated at the front of the eyes. Another approach for refractive surgery involves implanting a lens inside the human eyes. Even though there are various types of refractive surgeries performed by eye surgeons to correct and improve vision, LASIK (laser-assisted in situ keratomileusis) is the most widely performed type of refractive surgery that involves reshaping the cornea.
For people suffering from myopia or nearsightedness, specific refractive surgery techniques help eye doctors reduce the cornea's steep curvature by increasing the reduced focusing power of the eyes. As a result of refractive surgery procedures, otherwise focused images in front of the retina because of a more extended look or steep corneal curve are pushed closer to or directly onto the retina.
Farsighted people or those suffering from hyperopia undergo a refractive surgery procedure to achieve a steeper cornea that increases the eye's focusing power. Images that are otherwise focused beyond the retina because of a flat cornea are pulled closer to or directly onto the retina after undergoing surgery for this.
Astigmatism is corrected with refractive surgery that focuses on the selective reshaping of certain portions of an ill-shaped cornea. These techniques make the cornea smooth and symmetrical. As a result, the images start to focus clearly on the retina rather than distorted because of light scattering through an asymmetrically shaped cornea.
Phakic Intraocular Lenses (IOLs) are useful for people having a high degree of refractive error that cannot be safely corrected with corneal-based refractive surgery. The phakic IOL, also sometimes referred to as an implantable contact lens, or ICL, is placed inside the eyes right in front of the eye's natural lens, and the eye's natural lens is not removed. This thus helps patients to retain their pre-existing ability to focus on images.
Is refractive surgery a good option for you?
Refractive surgeries can be a viable choice for people who want to lessen their dependence on prescription eyeglasses or contact lenses. Also, people who are free of eye disease and have appropriate refractive errors can be good candidates for refractive surgeries. With that being said, we would like to point out that there is no universally-accepted, best method for correcting refractive errors, and people should decide the best option once they undergo a thorough eye examination with eye specialists. Various factors like lifestyle, health, age, and vision need to be kept in mind for determining the most appropriate refractive surgery.
Want to get a refractive surgery performed but apprehensive of the steps, benefits, and results? Head to Centre for Sight now. With a pan India presence and state of the art technology, our expert eye doctors are adept at performing the best refractive surgeries across India. Centre for Sight has an experience of more than 20 years in performing successful refractive eye surgeries and offers the best in class treatment.
Article:All you wanted to know about refractive surgery
Author: CFS Editorial Team | Sept 07 2020 | UPDATED 08:10 IST
*The views expressed here are solely those of the author in his private capacity and do not in any way represent the views of Centre for Sight.