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Keratoconus (KC) is a disorder of the eye that results in progressive thinning of the cornea. [3] The protrusion of the cornea may result in blurry vision, double vision, nearsightedness, irregular astigmatism, [4] and light sensitivity leading to poor quality-of-life.
They are usually yellowish to dark-brown, and may be complete or broken. [4] The rings are best seen using the slit lamp under cobalt blue filter. [4] They are named for Bruno Fleischer. [5] Fleischer rings are indicative of keratoconus, [6] a degenerative corneal condition that causes the cornea to thin and change to a conic shape.
Keratoconus, a progressive, noninflammatory, bilateral, asymmetric disease, characterized by paraxial stromal thinning and weakening that leads to corneal surface distortion. [ 2 ] Keratoglobus , a rare noninflammatory corneal thinning disorder, characterised by generalised thinning and globular protrusion of the cornea.
Corneal hydrops is an uncommon complication seen in people with advanced keratoconus or other corneal ectatic disorders, [1] and is characterized by stromal edema due to leakage of aqueous humor through a tear in Descemet's membrane. [2]
Keratoconus in itself is a pattern of the entire cornea, therefore every measurement just focusing on one layer, might not be enough for a state of the art diagnosis. Especially early cases of keratoconus might be missed by a plain topographic measurement, which is critical if refractive surgery is being considered. [ 7 ]
Keratoconus Munson's sign is a V-shaped indentation observed in the lower eyelid when the patient's gaze is directed downwards. The medical sign is characteristic of advanced cases of keratoconus and is caused by the cone-shaped cornea pressing down into the eyelid.
Look up Monday night for a chance to see the Draconid meteor shower. It’s a smaller meteor shower than some, but there is always the chance for a meteor storm. Dark skies will help the Draconid ...
Corneal cross-linking (CXL) with riboflavin (vitamin B 2) and UV-A light is a surgical treatment for corneal ectasia such as keratoconus, [2] PMD, and post-LASIK ectasia. It is used in an attempt to make the cornea stronger. According to a 2015 Cochrane review, there is insufficient evidence to determine if it is useful in keratoconus. [3]