Ophthalmology Diseases of orbit, Lids and lacrimal apparatus abe21976 The most common retrobulbar mass in adults is A Neurofibroma B Meningioma C Cavernous hemangioma D Schwannoma High-Yield Explanation Cavernous hemangioma is a non encapsulated seen most commonly inside the muscle cone. Refer khurana 6/e p 411