Ocular toxicity caused by toad venom.
OBJECTIVE
To report a case of ocular toxicity caused by toad venom.


METHODS
Observational case report.


RESULTS
A 31-year-old man came to our clinic complaining of burning pain, photophobia, and blurred vision in both eyes. He reported that an hour earlier he had been handling a toad (Bufo bufo). It ejected a liquid from its back that splashed on the patient's face and made him rub his eyes. Corrected visual acuity was 20/50 in the right eye and 20/40 in the left eye. Slit-lamp microscopy revealed mild chemosis and stromal corneal edema with Descemet folds in both eyes. Intraocular pressure (IOP) was 9 mm Hg in both eyes. Posterior segment examination was normal. Topical dexamethasone every 4 hours and cycloplegic 3 times a day were prescribed. Forty-eight hours later, corneal edema and conjunctival chemosis had resolved, and IOP was 18 mm Hg.


CONCLUSIONS
Ocular toxicity secondary to toad venom may cause corneal edema and low IOP that resolve without specific treatment in a short period.
López-López
José Manuel
JM
Río Hortega Universitary Hospital, Valladolid, Spain.
Sanabria
María Rosa
MR
de Prada
Silvia Jiménez
SJ
D000287:Administration, Topical; D000328:Adult; D000664:Amphibian Venoms / Q000009:adverse effects*; D000818:Animals; D002023:Bufo bufo; D003229:Conjunctival Diseases / Q000139:chemically induced* / Q000188:drug therapy; D015715:Corneal Edema / Q000139:chemically induced* / Q000188:drug therapy; D003907:Dexamethasone / Q000008:administration & dosage; D004359:Drug Therapy, Combination; D006801:Humans; D008297:Male; D009184:Mydriatics / Q000008:administration & dosage
D000664:Amphibian Venoms; D009184:Mydriatics; D003907:Dexamethasone