keratectasia


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Related to keratectasia: keratoconus
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Noun1.keratectasia - abnormal bulging of the cornea of the eye
astigmatism, astigmia - (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people
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References in periodicals archive ?
Keratoconus, Keratoglobus, Pellucid marginal degeneration, keratectasia following refractive surgery, Stromal opacities/scars sparing Descemet's membrane and Corneal dystrophies involving anterior/deep stroma.
This is particularly important in examinations prior to refractive surgery, as ectatic corneal disorders that have not been identified before refractive surgery may result in progressive keratectasia.
Corneal Collagen Cross Linking (CXL) is a novel and promising technique known to halt the progression of keratoconus and secondary keratectasia by increasing the biomechanical strength of the cornea, deferring the necessity of corneal grafts.
It was first used to treat keratoconus in 1998 and its primary aim is to strengthen the weakened cornea in ectatic conditions or keratectasia.
However, overestimation may cause over-ablation, which may increase the risk of iatrogenic keratectasia.
Progressive post-LASIK keratectasia Biomechanical instability or chronic disease process?
Laser-assisted in-situ keratomileusis (LASIK) has gained widespread popularity as a safe and effective surgical method for the correction of myopia, but patients with high [severe] myopia or thin corneas face some restrictions in avoiding the risk of developing keratectasia [a weakening of the cornea]," the authors write as background information in the study paper, published in the Archives of Ophthalmology, one of the JAMA/Archives journals.