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Editor,—Ocular toxoplasmosis is the most frequent infectious cause of chorioretinal inflammation in immunocompetent individuals.1 Diagnosis is usually made by observing the typical fundus lesion, by detecting the presence of anti-Toxoplasma antibodies in the serum, and by excluding other causes of necrotising fundus lesions.2In unusual cases, invasive procedures may be required to aid diagnosis.3
CASE REPORT
A 17 year old white male presented complaining of floaters and reduced visual acuity in the left eye. Visual acuity was 6/9 in the left eye, 6/6 in the right. Examination revealed moderate anterior chamber activity, marked vitritis, and an active retinochoroiditis adjacent to an area of old chorioretinal scarring inferonasal to the optic disc. A diagnosis of ocular toxoplasmosis was suspected, and topical and oral steroids, …