Epiblepharon is an extra fold of skin along the lower lid margin, just below the eyelashes, that extends over the medial canthal tendon. Epiblepharon may cause in-turning of the eyelashes (trichiasis).
Adapted with permission from: Paysse EA, Coats DK, Cassidy M. Refinements Volume III/Number 2. San Francisco: American Academy of Opthalmology, 1999.