Laser Vision Correction

Today, Lasik surgeons, also known as laser vision correction specialists are becoming immensely popular in the refractive surgery industry. With the advancement of technologies, there are several options available to patients for Laser vision correction, which not only improve eye sight but also treat and cure visual dysfunctions. Whether you are having higher degrees of myopia, astigmatism and even hyperopia, surgeries like LASIK, Epi-LASIK, Wavefront LASIK, LASEK, PRK and others and can be good options for correcting your refractive error to a significant extent.

Moreover, these surgeries are preferred to conventional eye surgeries because they are relatively painless, less time consuming, low in risk and comfortable, as well as result in  speedy recoveries and sustainable outcomes. No matter what type of vision ailment you have, it can be corrected by these LASER vision correction surgeries.

Usually, laser vision correction surgeries are done with the help of an Excimer Laser which is believed to produce the most reliable and consistent results in surgical procedures for vision correction today.

Laser Vision Correction surgery encompasses a wide range of procedures aimed at changing the refraction of the eye by altering the cornea and/or crystalline lens, which constitutes the principal refractive components. Refractive errors corrected by such procedures include myopia, hyperopia and astigmatism.

Laser Vision Correction surgeries for Myopia:

PRK and LASIK can correct low to moderate degrees of myopia. Clear Lens extraction gives good visual results but carries a small risk of retinal detachment. Phakic or Implantable contact lens are types of lenses that come with a power of -3D to -20.5 D. Short term visual results are promising, however, this procedure should be used with caution because it may be associated with visual dysfunctions due to uveitis, glaucoma, loss of endothelial cells and cataract formation.

Laser Vision Correction surgeries for Hyperopia:

PRK and Lasik can correct low degrees of hyperopia. LASIK can correct up to 4D. Conductive Keratoplasty with a radiofrequency probe can correct low hyperopia. In this procedure, burns are placed in one or two rings in the corneal periphery. The resultant thermally induced stromal shrinkage is accompanied by an increase in central corneal curvature. This change however, decays over time and patients may need to go for a repeated surgical procedure.

Laser Vision Correction surgeries for Astigmatism, arcuate keratotomy or correction of a 'plus' cylinder results in the flattening of the cylinder coupled with a smaller steepening of the flat meridian at right angle and reduces the astigmatic error. The desired result can be controlled by varying the length and depth of the incisions and their distance from the central part of the cornea. In the case of higher degrees of astigmatism, penetrating keratoplasty is usually more suitable. While PRK and LASEK both can correct up to 3D whereas LASIK can correct up to 5D. Lens surgery using a Toric lens is also possible though it may result in lens dislocation from the desired axis in some cases.

The correction of presbyopia by laser eye surgeries is still in its infancy.