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title="Corneal Abrasions" class="textlinksSub5">Corneal Abrasions</a> <a href="ro-corneal-ulcers.html" title="Corneal Ulcers" class="textlinksSub5">Corneal Ulcers</a> <a href="ro-fuchs-dystrophy.html" title="Fuchs Dystrophy" class="textlinksSub5">Fuchs Dystrophy</a> <a href="ro-keratoconus.html" title="Keratoconus" class="textlinksSub5">Keratoconus</a> <a href="ro-pinguecula.html" title="Pinguecula" class="textlinksSub5">Pinguecula</a> <a href="ro-pterygium.html" title="Pterygium" class="textlinksSub5H">Pterygium</a> </div> <div class="opthtitle_faded">Cornea</div> <div class="opthtitle_sub">Pterygium</div> <div id="innercontent_wrapper_opth"> <p>A <a href="ro-glossary.html#pterygium">pterygium</a> is a <a href="ro-glossary.html#non-cancerous">non-cancerous</a>, pinkish, triangular-shaped tissue (<a href="ro-glossary.html#conjunctiva">conjunctiva</a>) growth that lays over the white part of the eye (<a href="ro-glossary.html#sclera">sclera</a>) on the <a href="ro-glossary.html#cornea">cornea</a>. <a href="ro-glossary.html#pterygium">Pterygia</a> are more common in sunny climates and among people between the ages of 20 and 40; however, the exact cause is unknown. Studies suggest that where sunlight is strong, wearing protective eyeglasses, sunglasses, and/or hats with brims may help reduce the incidence of pterygium.</p> <p><span class="roclickhere">Please click below for a brief but detailed animation.</span></p> <div id="tdeonline">In order to view the content, you must install the Adobe Flash Player. Please click <a href="http://get.adobe.com/flashplayer/">here</a> to get started.</div> <script type="text/javascript"> var so=new SWFObject("http://online.eyemaginations.com/online.swf","tdeyeonlineswf","402","400","8","#FFFFFF"); so.addParam("wmode", "transparent"); so.addVariable("aID","208064952270d94d04770b343122725b"); so.write("tdeonline"); </script> <p>A pterygium is usually not too noticeable unless it becomes red and swollen from dust, air or other pollutants. Surgical options to remove a pterygium can be considered during your <a href="ro-glossary.html#comprehensive evaluation">comprehensive evaluation</a> with a Woolfson surgeon if it has a suspicious appearance. This is important to review because it can affect your vision and cause significant discomfort. </p> <p>There are instances, because a pterygium is visible, where patients choose to have it removed for <a href="ro-glossary.html#cosmetic">cosmetic</a> reasons. 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