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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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20) This identification is especially important in preoperative screening for laser refractive surgery, because undetected corneal ectatic disorders can result in accelerated, progressive keratoectasia and unpredictable outcomes after LASIK and photorefractive keratectomy.
Among the topics are clinical biomechanics and the ocular response analyzer in ecstatic disease, pre-operative risk factors and medical and legal considerations of keratoectasia, studies of wavefront aberrometry in corneal ectasia, non-surgical treatment using contact lenses, and corneal cross-linking with riboflavin and ultraviolet irradiation.