Ablepharon HP:0009925 HP:0011224 SNOMEDCT_US:13401001 Absent eyelids. Aplasia of the eyelids Agenesis of eyelids UMLS:C0266574 2011-12-13T07:58:12Z SNOMEDCT_US:708541009 In ablepharon, the globe is continuously exposed. It is arguable whether true aplasia of the eyelid exists, or whether this represents severe hypoplasia. Nevertheless, as it is difficult or impossible to make this distinction on clinical grounds, the term was felt to be useful. UMLS:C4020757 Ablepharon of eyelid Aplasia/Hypoplasia of the eyelid absent eyelids aplastic eyelid