ocular toxoplasmosis

Last reviewed 01/2018

Ocular toxoplasmosis is a common cause of posterior uveitis, and is usually a result of congenital infection with the organism, presenting in the second decade.

The patient typically has an aching eye and blurred vision.

On fundoscopy, there are areas of chorioretinitis, the focus of infection appearing as cotton-wool-like patch in the fundus. On resolution, a well demarcated scar is left.

These episodes may be asymptomatic, the scarred retina only being noticed on examination for other reasons.

Toxoplasma causes about 25% of the cases of uveitis in the UK.