Refractive surgery is a surgical procedure performed to correct the refractive error (spectacle power) of the eye. It is usually done to get rid of or reduce dependence on glasses and contact lenses. It can be performed in a patient with stable refraction (glass power) after the age of 18 – 21 years. A complete medical history along with a detailed eye examination is mandatory for all candidates, special Investigations like corneal topography (Pentacam, Orbscan), Anterior segment Optical Coherence Tomography are performed to evaluate the shape, thickness, and curvature of the cornea and other dimensions of the eye. After acquiring all the details, the eye surgeon (ophthalmologist) makes a decision regarding the available options of refractive surgery for the patient. Lens-based surgeries involve ‘in the eye -intraocular’ procedures to correct the spectacle power. In Refractive lens exchange the natural crystalline lens of the eye is removed and replaced by an artificial intraocular lens of the correct power.
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