Basics of Corrective Eye Surgeries

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LASIK

Basics of Corrective Eye Surgeries

Before the commercialisation of the contact lenses in the 1950s, eyeglasses remained the only practical way for the correction of refractive vision anomalies. Several modern approaches to corrective eye surgery are available now including laser technology that can actually reshape the cornea and surgical insertion of an artificial lens to correct the eyesight.

During PRK, LASIK in Dubai and likewise procedures, the laser can reshape corneal curvature thereby altering the way the light enters the eye. Another method is surgical implantation of the artificial lens which also refocuses the light rays thereby sharpening the vision.

Evolution

 During the 1980s, Radial Keratotomy (RK) was performed to correct near-sightedness which involved making a spoke-like incision and flattens the eye surface. However, the results were achieved long after the procedure and even raised other problems among some individuals. These patients complained of excess glare, fluctuating vision, regression and night vision problems especially those who’ve had their RKs for higher prescription strengths.

Photorefractive Keratectomy (PRK) marked the introduction of laser-based vision correction. During the process, the tissue is removed directly from the corneal surface thereby changing its curvature. Surface ablation or PRK as known in common was commercialized in 1995 after approval from the FDA. While PRK is still common, LASIK surpasses being the fastest, safest and more advance surgical procedure for vision correction.

Recent advancements in the technology further allowed surgeons to perform LASIK in Dubai on patients with flimsy cornea thereby creating thinner flaps than ever. The biggest advantage of LASIK is comfort and immediacy which means a patient is released within less than an hour post-surgery however, on doctor’s consent.

Types of LASIK

LASEK introduces an ultra-thin hinged flap in the epithelium (thin exterior covering) of the eye and moving it away from the corneal surface with alcohol so that reshaping may take place via laser tech.

Epi-LASIK is similar to LASEK except for the use of special cutting tools for lifting the flap.

Bladeless LASIK dismisses the need for a bladed instrument known as a microkeratome. A femtosecond laser instead creates a corneal flap before the reshaping takes place with an excimer laser. This procedure is also known as Intralase LASIK, iLASIK, Femto LASIK, LASIK, IntraLASIK and VisuMax.

PRK or Wavefront LASIK takes on the ultra-modern procedure known as wavefront which measures precisely how light travels through the eye. Excimer lasers have wavefront technology that can detect and automatically adjust even the subtlest vision errors while the beam reshaped the cornea.

Conductive Keratoplasty uses low heat radio waves and a tiny probe thus applying “spots” around the edge of the corneal surface. Conductive Keratoplasty can be performed for the correction of presbyopia or enhance near vision who’ve previously undergone cataract surgery or LASIK.

Implantable Lenses are those which replace the natural ones after surgical implantation. The success rate of these lenses is greater than 15 years.

Cataract Surgery is a vision correction procedure that takes place after new lenses are implanted to partially restore near vision while also rectifies farsightedness and near-sightedness. These lenses are known as multifocal IOLs or accommodating IOLs bearing outstanding results so far.

Conclusion

LASIK technology is ever advancing and promises far better results with vision correction.

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