Investigation of uveitis, scleritis and episcleritis
| Condition | Investigations |
|---|---|
| Uveitis | Bloods, eg HLA-B27, serum ACE, ESR, autoantibodies Infection screening, eg chest X-ray, syphilis serology, viral titres Ocular imaging, eg ultrasound, OCT, FFA Biopsy, eg vitreous ‘tap and inject’ |
| Scleritis | Phenylephrine test Autoantibodies Ocular ultrasound |
| Episcleritis | Phenylephrine test Other investigations not routinely required |
ACE = angiotensin-converting enzyme; ESR = erythrocyte sedimentation rate; FFA = fundus fluorescein angiography; OCT = optical coherence tomography.