Vasculitis — Ocular Manifestations

Overview

Vasculitis is inflammation of the vessel wall itself, and because the eye is supplied by vessels across the entire size spectrum — from the aorta's major branches down to the capillaries of the retina and choroid — nearly every category of systemic vasculitis has a recognized ocular signature. That range matters clinically: the same broad label "vasculitis" covers diseases that are managed with routine outpatient follow-up and diseases that are managed with same-day, hospital-level urgency.

Ophthalmology sits in an unusually consequential position for several of these conditions. A patient with giant cell arteritis may present to an eye clinic with vision loss before ever being diagnosed with a systemic rheumatologic disease, and the decision made in that visit — treat immediately, or wait for confirmatory testing — can be the difference between a treatable disease and permanent bilateral blindness. This page walks through the ocular presentations of the vasculitides most likely to appear on rounds or on an exam, with an emphasis on the features that distinguish one from another and the one management principle that is sharper than all the rest.

Clinical Features

Giant Cell Arteritis

Giant cell arteritis (GCA) is a granulomatous vasculitis of medium and large arteries, classically involving branches of the external and internal carotid arteries, and it is the vasculitis every ophthalmologist is trained to fear. The archetypal patient is over the age of 50 — often cited around 70 — presenting with jaw claudication (pain with chewing, from ischemia of the muscles of mastication) and sudden, often profound vision loss from arteritic anterior ischemic optic neuropathy. Other supporting features include new headache, scalp tenderness, temporal artery tenderness or a palpably firm or pulseless temporal artery, and systemic symptoms of polymyalgia rheumatica (proximal muscle aching and stiffness). Vision loss can be unilateral at presentation, but without treatment the fellow eye is at high risk of following within days.

ANCA-Associated Vasculitis (GPA & Polyarteritis Nodosa)

Granulomatosis with polyangiitis (GPA, formerly Wegener granulomatosis) is a small-vessel, ANCA-associated vasculitis that classically produces a triad of upper respiratory tract disease (sinusitis, saddle-nose deformity from cartilage destruction), lower respiratory tract disease (pulmonary nodules or hemorrhage), and glomerulonephritis. Ocular involvement is common and can include scleritis (often necrotizing), peripheral ulcerative keratitis, orbital inflammation with proptosis from a contiguous granulomatous mass, and retinal vasculitis.

Polyarteritis nodosa (PAN) is a necrotizing vasculitis of medium-sized muscular arteries that is important to distinguish from GPA and microscopic polyangiitis by what it spares: PAN classically does not involve the lungs or the glomeruli, unlike its small-vessel ANCA-associated cousins. A subset of PAN cases is linked to chronic hepatitis B infection. Ocular findings can include scleritis and retinal vasculitis from involvement of the ocular vasculature's own medium-sized branches.

Takayasu Arteritis

Takayasu arteritis is a large-vessel granulomatous vasculitis of the aorta and its major branches, sometimes called "pulseless disease" for the diminished or absent peripheral pulses that result from progressive arterial stenosis. It is the large-vessel vasculitis of the young — typically affecting patients under 40 — in direct contrast to giant cell arteritis, which typically affects patients over 50. Chronic hypoperfusion of the ophthalmic circulation can produce ocular ischemic syndrome, with findings such as venous stasis retinopathy, retinal neovascularization, and progressive visual loss from long-standing ischemia rather than the acute infarction typical of GCA.

Behçet Disease

Behçet disease is a systemic vasculitis notable for its ability to inflame vessels of any size, including veins, and is classically defined by recurrent painful oral and genital ulcers. Ocular disease is one of its most vision-threatening manifestations, typically a relapsing, bilateral panuveitis with retinal vasculitis — episodes of occlusive retinal vasculitis can cause progressive, cumulative visual loss over repeated flares if inflammation isn't adequately controlled.

Cogan Syndrome

Cogan syndrome is a rare autoimmune disorder defined by the combination of nonsyphilitic interstitial keratitis and Ménière-like vestibuloauditory symptoms — sensorineural hearing loss, vertigo, and tinnitus — occurring together, sometimes accompanied by a systemic vasculitis that can involve the aorta. The keratitis produces peripheral corneal stromal infiltrates and can threaten vision on its own, but the syndrome's real urgency comes from the auditory component: untreated, the hearing loss frequently becomes permanent, so recognizing the combination early matters for more than just the eye.

Diagnosis / Workup

For giant cell arteritis, temporal artery biopsy remains the gold standard for confirmation, showing granulomatous inflammation with disruption of the internal elastic lamina. Because GCA can cause "skip lesions" along the vessel, a negative biopsy does not fully exclude the diagnosis, and a long segment is typically sampled to reduce that risk. Inflammatory markers (ESR, CRP) are supportive but nonspecific.

ANCA serology is the key laboratory distinction within the ANCA-associated vasculitides: GPA is classically associated with cytoplasmic ANCA (c-ANCA), targeting proteinase 3 (PR3), which sets it apart from microscopic polyangiitis's perinuclear pattern (p-ANCA), targeting myeloperoxidase (MPO). For Behçet disease, there is no single confirmatory test — diagnosis is clinical, but a positive pathergy test (formation of a sterile pustule following minor needle-prick trauma to the skin) supports the diagnosis alongside the characteristic recurrent oral and genital ulceration.

Management

Giant cell arteritis is the sharpest management point in this entire cluster, and it is worth stating plainly: suspected GCA is treated immediately with high-dose systemic corticosteroids, without waiting for temporal artery biopsy results. The biopsy's role is to confirm the diagnosis, not to gate treatment — vision loss from GCA is frequently sudden, severe, and irreversible, and the fellow eye remains at risk until steroids take effect. A patient with a compatible history and exam who is made to wait days for a biopsy slot before starting treatment can lose vision in the second eye that could otherwise have been prevented.

Beyond GCA, management across this group is broadly immunosuppressive and disease-specific: GPA and PAN typically require systemic corticosteroids combined with a steroid-sparing immunosuppressant (such as cyclophosphamide or rituximab for GPA); Takayasu arteritis is managed with corticosteroids and vascular surveillance for evolving stenoses; Behçet uveitis is managed with systemic immunosuppression aimed at preventing further occlusive vasculitis episodes rather than only treating active flares; and Cogan syndrome requires urgent systemic corticosteroids specifically to try to preserve hearing, in addition to treating the keratitis.

Related Topics

Continue exploring Systemic Disease & the Eye: