Ocular toxocariasis: a neglected parasitic disease in Egypt

Abstract

Ocular toxocariasis is an important cause of unilateral vision impairment mostly in children and always in the differential diagnosis of retinoblastoma. This disease exhibits various manifestations such as posterior pole granuloma, peripheral granuloma, or chronic endophthalmitis. Diagnosis of ocular toxocariasis can be carried out by the ophthalmic examination and immunodiagnostic methods to reveal the specific antibodies in serum and ocular fluids. In addition, molecular diagnosis, medical imaging techniques, and histopathologic observation of Toxocara larva in the surgically obtained specimens can be performed. Ocular toxocariasis can be treated either medically or surgically. Regarding medical treatment, the ophthalmologists prefer to use steroids and anthelminthic drugs; however, there are no standardized parameters for doses, duration, and route of administration.