Ocular toxocariasis

Ocular toxocariasis

see Toxocariasis.

see also Cerebral toxocariasis

Ocular toxocariasis (OT) is a zoonotic infection caused by larval stages of Toxocara canis and T. cati.

systematic review and meta-analysis aimed to evaluate the global prevalence of OT.

Five English (PubMedScopusScienceDirectWeb of Science, and Google Scholardatabases were explored and 101 articles met the inclusion criteria.

The pooled prevalence (95% confidence interval) of OT was higher in immunological studies (9%. 6-12%) than in studies that applied ophthalmic examination (1%. 1-2%). The lower middle income country had the highest prevalence (6%. 2-12%) as well as the African region (10%. 7-13%). The highest infection rate (4%. 2-7%) was detected in the 1-25 mean age group.

Regular anthelmintic treatment of cats and dogs, and removal of animal feces from public places must be considered 1).


Badri M, Eslahi AV, Olfatifar M, Dalvand S, Houshmand E, Abdoli A, Majidiani H, Eslami A, Zibaei M, Johkool MG, Taghipour A, Hashemipour S. Keys to Unlock the Enigma of Ocular Toxocariasis: A Systematic Review and Meta-analysis. Ocul Immunol Inflamm. 2021 Apr 28:1-12. doi: 10.1080/09273948.2021.1875007. Epub ahead of print. PMID: 33909531.