Reactivation of ocular toxoplasmosis after pars plana vitrectomy

To report a case with reactivation of toxoplasma choroiretinitis after pars plana vitrectomy.

A 58-year-old female patient was diagnosed with secondary epiretinal membrane in her right eye. Bimanual 23-gauge pars plana vitrectomy and membrane peeling was performed. At first week postoperatively, visual acuity decreased; in slit-lamp examination, there were 3+ cells in the anterior chamber with keratic precipitate. Fundoscopic examination revealed reactivation of chorioretinitis adjacent to the previous scar.

The patient was diagnosed with reactivation of toxoplasma chorioretinitis and treated with oral trimethoprim-sulfamethoxazole, clindamycin and topical prednisolon acetate, and cyclopentolate drops for 5 weeks. Forty-eight hours after initiation of antibiotics, oral prednisone was added to the regimen and the dose was tapered to zero over the following 5 weeks. After 3 weeks of treatment, lesion was inactivated.

Ocular toxoplasmosis reactivation may develop after pars plana vitrectomy. After intraocular surgery, reactivation of ocular toxoplasmosis should be considered in the follow-up.