DR JAHANZAIB RAO on Instagram: "21 Yr old male with Right 👁 Moderate PTOSIS A brief talk about Ptosis Definition: Abnormal drooping of the upper eyelid due to dysfunction of the levator palpebrae superioris, Müller’s muscle, or their innervation. Causes (classification): Congenital: Levator dysgenesis (± jaw-winking, BPES) Aponeurotic: Involutional, post-surgery Neurogenic: 3rd nerve palsy, Horner syndrome Myogenic: Myasthenia gravis, CPEO Mechanical: Tumor, edema, dermatochalasis Traumatic Eva