Upper Lid Retractors include?
*The levator palpebrae superioris is the impoant upper eye lid retractor. Injury or weakness to this muscle leads to ptosis. *Deep pa of the elevator muscle is the Muller's muscle, which is sympathetically innveed. Ref: Textbook of Ophthalmic reconstructive surgeries p.786
Muller muscle and superior rectus
Levator palpabrae superioris and superior oblique
Superior oblique and superior rectus
Levator palpebrae superioris & muller muscle
Diseases of orbit, Lids and lacrimal apparatus