{"id":59,"url":"https://cclm.media-doc.io/conditions/59/","name":"Tear Instability - Non Wetting Lens","category":"Contact Lens","detail":"<p>Tear break-up time, deposits</p>\n\n<h2>Symptoms</h2>\n\n<ul>\n\t<li>Patient may report no symptoms</li>\n\t<li>Lenses may feel dry or uncomfortable</li>\n</ul>\n\n<h2>Signs</h2>\n\n<ul>\n\t<li>Drying of lens surface and failure of lens to rewet during blink</li>\n\t<li>Prelens tear film breakup &lt; interblink period (e.g. 6 seconds)</li>\n\t<li>Lens surface is not smooth on slit lamp evaluation</li>\n\t<li>Lens deposition may be present</li>\n\t<li>May occur more frequently in those with a poor quality and/or quantity of tears</li>\n</ul>\n\n<h2>Etiology</h2>\n\n<ul>\n\t<li>Deposition or contamination of lens surface</li>\n\t<li>Poor lens production quality, resulting in poor quality surface</li>\n\t<li>Poor tear film quality or quantity which may be exacerbated by lid margin disease</li>\n</ul>\n\n<h2>Prevalence</h2>\n\n<ul>\n\t<li>Common</li>\n</ul>\n\n<h2>Differential Diagnosis</h2>\n\n<ul>\n\t<li><a href=\"/condition/69\">Dry eye</a></li>\n\t<li><a href=\"/condition/47\">Incomplete blinking</a></li>\n\t<li>Deposits-&nbsp;<a href=\"/condition/54\">protein</a>,&nbsp;<a href=\"/condition/53\">lipid</a></li>\n\t<li><a href=\"/condition/45\">Blepharitis</a>/lipid layer anomaly</li>\n</ul>\n\n<h2>Management</h2>\n\n<ul>\n\t<li>Replace lens if old and/or deposited</li>\n\t<li>If lens is new, consider refitting into a new daily disposable, SiHy material, or improved tear film with lid hygiene, tear supplements, and/or lid massage</li>\n\t<li>Reduce wearing time or cease EW</li>\n\t<li>GP lenses may need to be remade</li>\n</ul>","images":[{"name":"Tear Instability - Non Wetting Lens","file":"https://cclm-static.s3.amazonaws.com/images/tbut-deposits-01.jpg"},{"name":"Tear Instability - Non Wetting Lens","file":"https://cclm-static.s3.amazonaws.com/images/tbut-deposits-02.jpg"}],"type":1,"videos":[],"wear":true,"ceaseWear":false,"changeLens":true,"changeSolutions":false,"changeCare":false,"counseling":false,"dd":true,"dw":false,"gp":true,"replace":false,"review":false,"rewettingDrops":false,"rx":false,"SiHy":true,"toric":false,"tags":[{"id":7,"url":"https://cclm.media-doc.io/tags/7/","name":"conditions"}]}