How to recognise partial Ptosis?
By the narrowing of the palpebral fissure. The clinical stands in front of the patient and the patient looks forward. Common causes of Ptosis : 1) Oculomotor nerve paralysis 2) Horner’s syndrome 3) Tabes dorsalis 4) Myasthenia gravis 5) Myotonia dystrophica 6) Congenital 7) Snake bite 8) Periodic paralysis 9) Hysterical. 10) Oedema or haemangioma of upper eyelid, enucleation of eyeball. * Congenital ptosis may be unilateral of bilateral. Acquired ptosis is unilateral in IIIrd nerve palsy and Horner’s syndrome : It is usually bilateral in tabes dorsalis, myopathy or disorders of myoneural junction.
