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Idiopathic orbital inflammatory (IOI) disease refers to a marginated mass-like enhancing soft tissue involving any area of the orbit. It is the most common painful orbital mass in the adult population, and is associated with proptosis , cranial nerve palsy ( Tolosa–Hunt syndrome ), uveitis , and retinal detachment .
Tenon's capsule may be affected by a disease called idiopathic orbital inflammation, a condition of unknown etiology that is characterized by inflammation of one or more layers of the eye. The disease is also known as orbital inflammatory pseudotumor, and sometimes may only affect the lacrimal gland or the extraocular muscles. [2]
Implicated orbital disorders include optic gliomas, meningiomas, hemangiomas, lymphangiomas, dermoid cysts, carcinoma, lymphoma, multiple myeloma, inflammatory orbital pseudotumor, and thyroid ophthalmopathy. Patients often have bulging out of the eye (proptosis) with mild color deficits and almost normal vision with disc swelling.
IgG4-related ophthalmic disease (IgG4-ROD) is the recommended term to describe orbital (eye socket) manifestations of the systemic condition IgG4-related disease, [2] which is characterised by infiltration of lymphocytes and plasma cells and subsequent fibrosis in involved structures. It can involve one or more of the orbital structures.
Trochleitis was first identified in 1984 by Tychsen, et al. in a study of thirteen patients with orbital pain and point tenderness over the trochlear region. Previously, the trochleitis syndrome had been included in the broad category of idiopathic orbital inflammation (also called orbital pseudotumor).
In the orbit, the surrounding fascia allows for smooth rotation and protects the orbital contents. If excessive tissue accumulates behind the ocular globe, the eye can protrude, or become exophthalmic. [5] Tear system: a. tear gland / lacrimal gland, b. superior lacrimal punctum, c. superior lacrimal canal, d. tear sac / lacrimal sac,
Orbital lymphoma is a common type of non-Hodgkin lymphoma that occurs near or on the eye. Common symptoms include decreased vision and uveitis . Orbital lymphoma can be diagnosed via a biopsy of the eye and is usually treated with radiotherapy or in combination with chemotherapy .
Tolosa–Hunt syndrome is a rare disorder characterized by severe and unilateral headaches with orbital pain, along with weakness and paralysis (ophthalmoplegia) of certain eye muscles (extraocular palsies). [1] In 2004, the International Headache Society provided a definition of the diagnostic criteria which included granuloma. [2]