Keratoplasty

Keratoplasty

• Aim: Replacing the opaque part by a clear cadaveric cornea

• Types: Z

  • Lamellar (Superficial)
  • Deep (Penetrating)

  NB: Both of them may be partial or total

• Indications: Z

  • Optical
    • a) Central corneal opacities
    • b) Keratoconus
  • Therapeutic
    • a) Resistant corneal ulcer
    • b) Corneal fistula

Bladeless blade

PKP 1- age >18 2- stable refraction for 2 yrs 3- no other diseases of eye - normal opthalmic exam 4- no keratisconus normal bectacam?? CC 5- corneal thickness 400-450 minimum

PRK:(corneal epithelium removal; by alcohol specific concentration, special spatula, after removal of epithelium wash the stroma by salime and then apply laser; Exciemer laser = ablation i.e. reshaping of corneal stroma Z OSPE fit for sport

footballer boxer

disadvantage pain

LASIK corrects by high degree