A brief review of the simple clinical classification of ptosis Simple ptosis Ptosis associated with deformities of lids and blepharophimosis Ptosis associated with varying degrees of ext ophthalmoplegia Ptosis associated with synkinesis movements of jaw and kids synkinesis ptosis Sympathetic ptosis associated with congenital sympathetic ptosis Periodic ptosis associated with cyclic oculomotor spasm Intermittentpseudoptosis associated with du ret syndrome