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Arquivos Brasileiros de Oftalmologia

Print version ISSN 0004-2749On-line version ISSN 1678-2925

Abstract

MORAIS, Fábio Barreto; ARANTES, Tiago Eugênio Faria e; MUCCIOLI, Cristina  and  ALLEMANN, Norma. Ultrasonographic characteristics of active ocular toxoplasmosis. Arq. Bras. Oftalmol. [online]. 2019, vol.82, n.4, pp.317-321.  Epub Apr 29, 2019. ISSN 1678-2925.  http://dx.doi.org/10.5935/0004-2749.20190063.

Purpose:

To evaluate ophthalmic ultrasonographic findings associated with active ocular toxoplasmosis.

Methods:

Forty-seven eyes with active ocular toxoplasmosis in 47 patients were subjected to ocular ultrasonography using the transpalpebral technique (10-MHz transducer) and fundus photography. Patient medical records were retrospectively reviewed.

Results:

Ocular ultrasonography revealed vitritis, posterior vitreous detachment, retinal wall thickening, and non-rhegmatogenous retinal detachment in 47 (100%), 36 [76.6%; partial in 12 (25.5%) and total in 23 (48.9%)], 12 (25.5%), and 5 eyes (10.6%). Thirty-five of the 36 eyes with posterior vitreous detachment (97.2%) exhibited posterior hyaloid thickening; moreover, adhesion to the exudative lesion and vitreoschisis were observed in 4 (11.1%) and 12 eyes (25.5%), respectively. Ultrasonography detected the location of the exudative focus in 12 eyes (25.5%).

Conclusion:

Ultrasonography is helpful for detecting important intraocular findings of acute ocular toxoplasmosis that can be hindered by medial opacity or posterior synechiae.

Keywords : Toxoplasmosis, ocular/diagnostic imaging; Uveitis; Vitreous detachment.

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