Eyelid diseases include infections of the eyelid and physical misalignments of the eyelids.

Infections result in swollen and tender inflamed eyelids known as Preceptal Cellulitis .

Misalignments include ectropian in which the  eyelids re pulling away from the eye. Entropian in which the eyelid is curling too close to the eye. Ptosis in which the eyelid is drooping. Dermatochalisis and blepharchalis are conditions in which the fat around the eye herniates forward producing "Bags" under the eyes.