Cysticercosis Of The Extraocular Muscles. Our Experience And Review Of The Medical Literature.

Ocular cysticercosis is caused by the growth of the larvae of Taenia solium within the ocular tissues and the cysts may be located in descending order of frequency, sub retinal (35%), vitreous (22%), conjunctiva (22%), anterior segment (5%) and orbit (1%). The extraocular muscle form is the most common type of orbital cysticercosis. In the ocular form, the most favored sites are the vitreous and the sub retinal space whereas the inferior rectus and the medial rectus are the most common extraocular muscles involved. Intraocular cysticercosis is predominant in the Western countries, whereas extraocular is more common in the Indian population and several authors have attributed geographic and environmental factors.