ABSTRACT
<p><b>OBJECTIVE</b>To explore the eyelid's characteristics of outpatients who visited the plastic surgery clinic in 3rd Hospital of Peking University.</p><p><b>METHODS</b>From Jan. 2007 to Feb. 2011, we collected facial images and general data of 2,183 outpatients, and divided them into groups according to their genders. The eyelid images were analyzed and epicanthus or foldless eyelid were recorded. Then the incidence rates of epicanthus and foldless eyelid were calculated.</p><p><b>RESULTS</b>In 2,183 patients (4,366 eyes), the incidence rate of epicanthus is 86.1% (3,760/4,366), and the incidence rate of foldless eyelid is 35.3% (1,541/4,366). In 178 males (356 eyes) and 2,005 females patients (4,010 eyes), the incidence rates of epicanthus are 78.4% (279/356) and 86.8% (3,481/4,010), respectively. The incidence rates of foldless eyelid are 48.0% (171/356) and 34.2% (1,370/4,010), respectively.</p><p><b>CONCLUSIONS</b>The incidence rates of epicanthus and foldless eyelid are relatively high for the outpatient population in the plastic surgery clinic of Third Hospital of Peking University.</p>