TOXOPLASMIC CHORIORETINITIS AFFECTING THE MACULA

Abstract

Macular changes in toxoplasmic chorioretinitis of 41 patients with ocular toxoplasmosis were studied. Of the 41 patients, 7 had central, large, deep, pigment ringed scars of congenital toxoplasmosis with poor central vision; squint was seen in 2 and nystagmus in 2; 32, including 11 cases with a macular lesion, had recurrent active toxoplasmic chorioretinitis with a focal, yellowish-white, elevated lesion with indistinct borders mostly at the margin of an old scar and associated with vitreous opacities in all, secondary anterior uveitis in 28, macular edema in 22, papilloedema in 74, and retinal perivasculitis in 16 cases; 2 had rare acquired toxoplasmic chorioretinitis affecting the macula. Active toxoplasmic chorioretinitis often causes a widespread intraocular inflammation with vitritis, macular edema, papilloedema, retinal perivasculitis and secondary anterior uveitis, and suggest a combined treatment of active lesions with antimicrobial agents and corticosteroids.