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The last two decades have seen a paradigm shift in the understanding of ocular toxoplasmosis. Post-natally acquired infection with its atypical presentations, has emerged as a common form of the disease. We conducted a questionnaire-based survey to investigate the characteristics of atypical presentations and current treatment practices of ocular toxoplasmosis, in India. A written questionnaire was distributed to ophthalmologists at two major uveitis meetings, held in Hyderabad, India in January, 2009. It evaluated characteristics of atypical presentations of ocular toxoplasmosis and specific treatment-related issues in India. Of 37 respondents who completed the questionnaire, 28 (75.6%) found atypical presentations in less than one-fourth of ocular toxoplasmosis patients. Atypical presentations were mostly seen as primary retinitis lesion, and in healthy immuno-competent individuals. Most ophthalmologists (n = 28, 75.6%) thought viral retinitis to be the most common differential diagnosis for atypical ocular toxoplasmosis and relied on serological tests (n = 19, 51.3%) for the diagnosis. Twenty-three (62.1%) respondents treated all patients with active lesions. A diverse range of treatment regimens were used, trimethoprim-sulphamethoxazole combination being most common (n = 12, 32.4%). Corticosteroids were included in all regimens. Atypical presentations of ocular toxoplasmosis were identified by all ophthalmologists, participating in the survey, though not commonly by most. Treatment practices were diverse, reflecting the lack of consensus on this issue.

An ophthalmologist survey-based study of the atypical presentations and current treatment practices of ocular toxoplasmosis in India