{"id":23,"url":"https://cclm.media-doc.io/conditions/23/","name":"Keratoconus","category":"Cornea","detail":"<p>Corneal distortion, irregular astigmatism, conical cornea</p>\n\n<h2>Symptoms</h2>\n\n<ul>\n\t<li>Blurry vision</li>\n</ul>\n\n<h2>Signs</h2>\n\n<ul>\n\t<li>Oval shaped distorted keratometric mires</li>\n\t<li>Steepening of apical corneal curvature &ge;47 D</li>\n\t<li>Apex of cornea typically inferior and laterally displaced</li>\n\t<li>Difference in corneal power &ge;1.50D at locations 3mm above and below the visual axis</li>\n\t<li>Cylindrical correction increasing / irregular astigmatism / poor spectacle acuity</li>\n\t<li>Vogt&rsquo;s striae (small centrally located striae)</li>\n\t<li>Central scarring may occur, Kaiser Fleischer ring</li>\n\t<li>Corneal topography shows inferior or central steepening (red area)</li>\n</ul>\n\n<h2>Etiology</h2>\n\n<ul>\n\t<li>Ectatic corneal disease in which cornea thins and distorts</li>\n\t<li>Collagen disorder of cornea</li>\n\t<li>Age of onset is usually teens to twenties</li>\n</ul>\n\n<h2>Prevalence</h2>\n\n<ul>\n\t<li>Occasional</li>\n</ul>\n\n<h2>Differential Diagnosis</h2>\n\n<ul>\n\t<li><a href=\"/condition/61\">See: Distortion of the Cornea &ndash; Differential Diagnosis</a></li>\n</ul>\n\n<h2>Management</h2>\n\n<ul>\n\t<li>Fit with GP lenses to achieve good visual acuity</li>\n\t<li>Monitor regularly for progression</li>\n\t<li>A contraindication for refractive surgery</li>\n\t<li>Frequently GP lens wear provides sufficiently good vision such that surgery can be avoided</li>\n</ul>","images":[{"name":"Keratoconus","file":"https://cclm-static.s3.amazonaws.com/images/keratoconus-01_zoom.jpg"},{"name":"Keratoconus","file":"https://cclm-static.s3.amazonaws.com/images/keratoconus-02_zoom.jpg"}],"type":1,"videos":[{"name":"Keratonconus with Intacs and Soft Lens","videoSrc":"248362055"}],"wear":false,"ceaseWear":false,"changeLens":true,"changeSolutions":false,"changeCare":false,"counseling":false,"dd":false,"dw":false,"gp":true,"replace":false,"review":false,"rewettingDrops":false,"rx":false,"SiHy":false,"toric":false,"tags":[]}