{"id":35,"url":"https://cclm.media-doc.io/conditions/35/","name":"Staining – 3 & 9 O’Clock","category":"Cornea","detail":"<h2>Symptoms</h2>\n\n<ul>\n\t<li>May be associated with lens intolerance, reduced wear time, dryness</li>\n</ul>\n\n<h2>Signs</h2>\n\n<ul>\n\t<li>Fluorescein, rose Bengal and/or lissamine green staining in the nasal and temporal corneal margins adjacent to the lens edge</li>\n\t<li>Conjunctival hyperemia along horizontal meridian</li>\n</ul>\n\n<h2>Etiology</h2>\n\n<ul>\n\t<li>Disruption of the epithelial surface due to tear film breakdown, incomplete blinking, or desiccation</li>\n</ul>\n\n<h2>Prevalence</h2>\n\n<ul>\n\t<li>Common in rigid lens wearers</li>\n</ul>\n\n<h2>Differential Diagnosis</h2>\n\n<ul>\n\t<li><a href=\"/condition/65\">Other staining patterns</a></li>\n\t<li><a href=\"/condition/7\">Dellen</a></li>\n\t<li>Pseudopterygium</li>\n\t<li><a href=\"/condition/65\">See: Epithelial Fluorescein Staining &ndash; Differential Diagnosis</a></li>\n</ul>\n\n<h2>Management</h2>\n\n<ul>\n\t<li>Aim to improve the centration of the GP lens</li>\n\t<li>Blinking exercises</li>\n\t<li>Refit with larger diameter lens and thinner edge design</li>\n\t<li>Refit with a GP toric lens if the cornea is &gt;2D toric</li>\n\t<li>Refit with SiHys if GP lens fitting cannot be improved</li>\n\t<li>Ocular lubricants and/or blinking exercises</li>\n</ul>","images":[{"name":"Staining – 3 & 9 O’Clock","file":"https://cclm-static.s3.amazonaws.com/images/staining-3-9-oclock-01_zoom.jpg"},{"name":"Staining – 3 & 9 O’Clock","file":"https://cclm-static.s3.amazonaws.com/images/staining-3-9-oclock-02_zoom.jpg"}],"type":1,"videos":[],"wear":false,"ceaseWear":false,"changeLens":true,"changeSolutions":false,"changeCare":false,"counseling":false,"dd":false,"dw":false,"gp":true,"replace":false,"review":true,"rewettingDrops":true,"rx":false,"SiHy":true,"toric":false,"tags":[]}