keratectasia


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Related to keratectasia: keratoconus
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Words related to keratectasia

abnormal bulging of the cornea of the eye

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Moreover, this may lead to iatrogenic keratectasia or corneal melting.
Exclusion criteria included eyes with history of previous ocular surgery, secondary keratectasia, severe keratoconjunctivitis sicca, active ocular infection, corneal melting, epithelial healing problems, systemic autoimmune disorders, pregnancy and lactation.
Pillunat, "Oestrogen-induced changes in biomechanics in the cornea as a possible reason for keratectasia," The British Journal of Ophthalmology, vol.
Table 1 Conditions potentially suitable for collagen cross-linking POTENTIAL INDICATIONS FOR COLLAGEN CROSS-LINKING * Keratoconus * Pellucid marginal degeneration * Iatrogenic keratectasia (post-LASIK) * Prevention of keratectasia (prior to refractive surgery) * Microbial keratitis * Stromal corneal ulceration * Donor tissue modification prior to corneal graft * In combination with orthokeratology
The treatment of keratectasia with hyperopia and hyperopic or mixed astigmatism constitutes a challenge to the refractive surgeon.
This polymerization increases the rigidity of corneal collagen and improves resistance to keratectasia. Furthermore, the application of UV-A and riboflavin has been shown to inactivate certain viruses, bacteria, fungi, and parasites in several in vitro studies.
As per their study also, undersurface ablation of the flap retreatment appears to have less potential for changing the posterior corneal surface than conventional LASIK enhancement and can help reduce the likelihood of retreatment-induced keratectasia. (9)
* In dystrophies where the cornea is abnormally thin, for example, keratoconus, LASIK and LASEK would reduce the corneal thickness even further and may cause keratectasia. Signs of subclinical keratoconus such as inferior steepening of the cornea, even where corneal thickness is adequate are a contraindication to corneal surgery.
Previous studies document that, although Laser in situ keratomileusis (LASIK) is the most worldwide performed refractive procedure, surface ablation may be safer to avoid flap complications, corneal weakening, and a higher risk of iatrogenic keratectasia associated with LASIK, and thus, the era of surface ablation emerged as an alternative [1-3].
(d) The patient has developed keratectasia. Fit with contact lenses or Intacs
Colin, "Intracorneal rings for keratoconus and keratectasia," Journal of Cataract & Refractive Surgery, vol.
Corneal Collagen Cross-linking with Riboflavin (also known as "[C.sub.3]R " or "CXL") is a new treatment for keratectasia and is the only one that addresses the underlying cause of the condition: weakness in the cornea.
Corneal ectatic disorders including keratoconus and postoperative keratectasia are one of the most common causes leading to vision loss in young adult population [1, 2].