Many parasites, such as tapeworms, fly larvae and nematodes, are reported in the medical literature as having been found "in the eye." In most instances, however, the parasites have been in the extraocular tissue or conjunctival sac, rather than actually intraocular. Nearly all of the intraocular nematode worms found have been of the genus Filaria and were reported from the tropics.
One of the most interesting cases is that described by Nayar and Pillai,1 of India.
On June 10, 1932, a native man 34 years of age came to the Government Ophthalmic Hospital at Madras, India, because of blurring of vision and a wormlike object floating about in front of his left eye for five days. Examination of the fundus revealed a "threadlike wriggling worm, coiling itself and moving briskly, especially when light was thrown directly on it. There was an oval clot of blood, about three fourths
JONES LT, JORDAN LW, SULLIVAN NP. INTRAOCULAR NEMATODE WORMS: REPORT OF A CASE AND REVIEW OF THE LITERATURE. Arch Ophthalmol. 1938;20(6):1006–1012. doi:10.1001/archopht.1938.00850240120008
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