Most common cause of unilateral proptosis is -: (A) Thyrotoxicosis, (B) Retinoblastoma, (C) Intraocular haemorrhage, (D) Raised intracranial tension
Answer is A. Most common cause of bilateral proptosis: In children : Neuroblastoma and leukemia (chloroma). In adults : Thyroid ophthalmopathy. Most common cause of unilateral proptosis: In children : Orbital cellulitis. In adults : Thyroid ophthalmopathy. Ref: A. K. Khurana 6thE pg404