Laser in ophthalmology

Laser surgery (light amplification by stimulated emission of radiation) is destined to correct vision problems such as:

  • Nearsightedness : images are not produced on the retina but in front of it
  • Farsightedness : images focus behind the retina
  • Astigmatism: abnormal curvature of the cornea, close and distant objects are difficult to see

Laser can also treat other ocular lesions such as:

  • Conditions of the retina: diabetic retinopathy, age related macular degeneration, and thrombosis
  • Cataract: congenital clouding of the eye’s natural lens
  • Glaucoma: ocular hypertension
  • Peripheral lesions of the retina or preventive treatment of the retinal detachment

Laser eye surgery

A laser eye procedure in Tunisia will mold the surface of the eye. The procedure is quick but requires high precision instruments and a complete diagnosis regarding the exact nature of the visual defect. Three different techniques are used with the laser:

  • Radial keratotomy: incisions are made in the cornea which relaxes the periphery of the cornea
  • Photorefractive keratectomy (PKR) which removes the central part of the cornea. The surgeon has to scratch the epithelium first.

 

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