American toad American toad The American toad ("Anaxyrus americanus") is a common species of toad found throughout the eastern United States and Canada. It is divided into three subspecies—the eastern American toad ("A. a. americanus"), the dwarf American toad ("A. a. charlesmithi"), and the rare Hudson Bay toad ("A. a. copei"). Recent taxonomic treatments place this species in the genus "Anaxyrus" instead of "Bufo". The eggs of the American toad are laid in two strings and can hatch in 2–14 days. When hatched the tadpoles are recognizable by their skinny tails in relation to the size of their black bodies. They may
Ocular larva migrans Ocular larva migrans Ocular larva migrans (OLM), also known as ocular toxocariasis, is the ocular form of the larva migrans syndrome that occurs when "Toxocara canis" (dog roundworm) larvae invade the eye. They may be associated with visceral larva migrans. Unilateral visual disturbances, strabismus, and eye pain are the most common presenting symptoms. The disease presents with an eosinophilic granulomatous mass, most commonly in the posterior pole of the retina. The granulmatous mass develops around the entrapped larva, in an attempt to contain the spread of the larva. ELISA testing of intraocular fluids has been demonstrated to be of great