Episcleritis Clinical Presentation
- Author: Hampton Roy Sr, MD; Chief Editor: Hampton Roy Sr, MD more...
History
All patients should undergo a thorough history, including a review of systems.
Many patients complain of acute onset of mild-to-moderate discomfort, although some may notice an area of painless injection.
Photophobia and watery discharge may be noted.
Physical
A diffuse or localized injection of the bulbar conjunctiva is often present.
A watery discharge is observed in some patients.
A freely moveable nodule may be present in nodular episcleritis.
Corneal findings are uncommon and include dellen formation as well as peripheral corneal infiltrates.
An associated anterior uveitis may occur in as many as 10% of patients.
Causes
Most cases are idiopathic; however, up to one third of cases may have an underlying systemic condition.[6, 7, 8]
Collagen-vascular diseases are as follows:
- Polyarteritis nodosa
- Seronegative spondyloarthropathies -Ankylosing spondylitis, inflammatory bowel disease, reactive arthritis, psoriatic arthritis
Miscellaneous causes are as follows:
- Atopy
- Foreign bodies
- Chemicals
Infectious diseases causes are as follows:
- Viruses, including herpes
- Fungi
- Parasites
Other rare causes/associations are as follows:
- T-cell leukemia
- Paraproteinemia
- Paraneoplastic syndromes - Sweet syndrome, dermatomyositis
- Wiskott-Aldrich syndrome
- Adrenal cortical insufficiency
- Necrobiotic xanthogranuloma
- Progressive hemifacial atrophy
- Following transscleral fixation of posterior chamber intraocular lens
- Insect bite granuloma
- Malpositioned Jones tube
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