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   Table of Contents      
Year : 1979  |  Volume : 27  |  Issue : 4  |  Page : 17

Posterior uveitis of toxoplasmic infection

Medical College, Calcutta, India

Correspondence Address:
I S Roy
Institute of Ophthalmology, Medical College Calcutta
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How to cite this article:
Roy I S, Ahmed E, Ghosh T N. Posterior uveitis of toxoplasmic infection. Indian J Ophthalmol 1979;27:17

How to cite this URL:
Roy I S, Ahmed E, Ghosh T N. Posterior uveitis of toxoplasmic infection. Indian J Ophthalmol [serial online] 1979 [cited 2020 Dec 1];27:17. Available from: https://www.ijo.in/text.asp?1979/27/4/17/32559

In India, Santokh Singh[2] reported the first case of ocular toxoplasmosis in a boy of 9 years. Subsequently, various aspects of ocular toxoplasmosis have been reported in Indian literature.

The characteristic lesion is a healed focus of retinochoroiditis, frequently bilateral, often near the posterior pole, particularly at the macula.

  Case reports Top

Below a few illustrative cases have been described who showed positive toxoplasmin skin reaction.

Case No. I

Miss D.S., 16 years, college student, noticed blurring of vision in her right eye for past few months. Past ocular history was essentially non-contributory.

Visual acquity in left eye was 6/6, while that in right eye was 6/60. Ophthalmoscopic examination of right eye showed circumscribed, punched out whitish area at the posterior pole ridged and partly occupied by dense black pigments.

Haemogram, stool examination, Mantoux test, x-ray were non-contributory.

Toxoplasmin skin reaction was positive.

Case No. II

Mrs. P.R., 35 years, housewife, visited our out patients department with deterioration of left visual acuity.

Visual acuity in right eye was 6/9 and that in the left eye was 6/18. Ophthalmoscopic examination revealed disseminated chorioretinitis in both eyes with consecutive optic atrophy in left side. The clinical appearance was highly suggestive of a toxoplasmic posterior uveitis.

Haemogram, stool examination, Mantoux test, x-ray and post-prandial blood sugar estimation were unrevealing.

Toxoplasmin skin reaction was strongly positive. Other investigation were negative.

Case No. III

Dr. Poddar, aged 70 years, complained of gross visual disturbance in both eyes and on examination he was found to have visual acuity of 3/60 in right eye and 6/60 in left eye.

Ophthalmoscopic examination revealed bilateral retinochoroiditis with involvement of the macula showing pigment heaping and visibility of the sclera.

All other investigations were essentially non­contributory except positive toxoplasmin skin reaction.

  Discussion Top

Three cases were documented in three different age groups. In all of them the charac­teristic clinical appearance was suggestive of toxoplasmic posterior uveitis. The chief differential diagnosis was from a tuberculous affection. Toxoplasmin skin test was positive in all cases. This skin test closely resembles that of delayed tuberculin-type reaction. In our previous communication[1] two cases of macular dysplasia with microcornea and nystag­mus were critically studied. Toxoplasmin skin test of the mother of one of them showed strongly positive reaction suggesting congenital infection involving the child.

  Summary Top

Three illustrative cases of posterior uveitis of toxoplasmic infection showing positive toxo­plasmin skin test are documented.

  References Top

Roy, I.S., Ghosh, T.N. and Chowdhury, B., 1973, Indian J. Ophth., 2, 63.   Back to cited text no. 1
Singh, S., Indian Physician, 11, 209.  Back to cited text no. 2


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