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What is Keratoconus?

Keratoconus is a progressive disease of the outer transparent layer of the eyeball (cornea) affecting young adults mostly in their twenties. It is characterized by Progressive thinning of the normally round cornea causing it to bulge forward and assume a cone-like shape. This irregularity in the cornea results in the formation of a distorted image of objects on the retina & gives rise to Blurred vision. It generally affects both eyes but can also occur unilaterally.

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What is Keratoconus?

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  1. WhatisKeratoconus? • Keratoconusis a progressivediseaseoftheoutertransparentlayer oftheeyeball(cornea)affectingyoungadultsmostly intheir twenties.ItischaracterizedbyProgressivethinningofthenormallyroundcorneacausingittobulgeforwardandassumea conelike shape. This irregularityin thecornearesultsin theformationof adistortedimageof objectsontheretina& givesrisetoBlurredvision. Itgenerallyaffects both eyes butcanalso occur unilaterally. • What are the symptoms&signs of keratoconus? • Keratoconusisdiagnosedusuallyonroutineeyeexaminationbytheeyedoctor.Keratoconuscausesmyopiaornearsightedness& astigmatism. Thepatientexperiencesfrequentchangeinglassesprescriptionwithfluctuationinvision.Somepatientsalsohaveglare& sensitivityto light especiallyduringnight. • InadvancedstageofKeratoconus, correctiveprescriptionglasses donothelpthepatienttoseeclearlyandtheyhave toswitchtousing hard orsemi-soft contactlenses. • Youreyedoctorpractitionercandiagnoseearlystageofkeratoconus afteradetailedeyeexaminationwhichincludesRetinoscopy,Slit • lampexaminationandsophisticatedtestslikeTopography(CornealMapping)tochecktheshapeandcurvatureofcornea&Pachymetry to determinethethickness ofthe cornea. • SuspectKeratoconuswhen: • A lateteen or young adult myopeis no longercorrectableto 20 /20 at thephoropter • Thereis achange inastigmatism.(cylindricalpower) • Thereisachangeinaxisof astigmatism. • Frequent change in eye glass power.

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