There may be decreased visual acuity, direct and consensual photophobia, posterior synechia between the iris and lens, and keratitic precipitates on the endothelium. In most cases, the eye appears normal. On slit lamp exam there may be decreased tear meniscus at the lower lid margin. The corneal epithelium shows varying degrees of fine punctate stippling in the interpalpebral fissure, which stain with rose bengal or fluorescein if more severely damaged. The pupil may be mid-dilated and may be nonreactive to light.
Slit lamp reveals corneal edema with a shallow anterior chamber with mild cells and flare.
The anterior chamber may be narrow. Both may become inflamed. Anterior chamber inflammation or posterior involvement may affect visual acuity. The globe is often tender and the sclera swollen. Deep scleral injection is accompanied by inflammation of the episclera and conjunctiva.