Ptosis is a common disorder mostly managed by oculoplastic surgeons it is defined as drooping of upper lid if it is simply not covering the visual axis not interfering the vision one can wait however if visual axis is involved by the dry upper lid it can cause visual impairment and if not managed surgically in time amblyopia can result  ptosis can be Congenital Aponeurotic Due to myasthenia gravis  Muscle disorder Nerve disorder Local eye cause    The simple classification of ptosis is   Simple ptosis  Ptosis associated with deformities of lids and blepharophimosis syndrome Ptosis associated with varying degrees of external ophthalmoplegia Ptosis associated with synkinetic movements of jaw and lids  called synkinetic ptosis Sympathetic ptosis  associated with congenital oculomotor palsy  Periodic ptosis associated with cyclic oculomotor spasm Intermittent pseudo ptosis associated with…