Involutional entropionInvolutional lower eyelid entropion is in-turning of the lower eyelid due to eyelid tissue or ligamentous laxity. Eye irritation or ocular surface damage due to lashes rubbing the ocular surface are indications for repair. Laxity may be present vertically and horizontally in the eyelid, and an overriding of the preseptal orbicularis oculi muscle can be a factor. Different surgical techniques address key pathologic variables in involutional entropionInvolutional lower eyelid entropion. This chapter details the surgical repair of involutional entropion as well as epiblepharonEpiblepharon, a related condition.