Ophthalmomyiasis interna posterior: report of case caused by the reindeer warble fly larva and review of previous reported cases.

Abstract

SUMMARY A 13-year-old boy from northern Norway had a living reindeer warble fly larva in the vitreous and typical subretinal tracks in his right eye. The larva was removed alive and normal visual acuity was preserved. This is the first time the reindeer warble fly larva (Oedemagena tarandi) has been found to cause myiasis in man.

Myiasis

“…Subretinal myiasis can cause exudative and fibrovascular detachments and even focal hemorrhages, multifocal fibrous scarring, total detachment, and blindness (74,332). However, its typical clinical manifestation is that of multiple-crisscross RPE with atrophic pigmentary tracts (204).…”

Fungal and Parasitic Infections of the Eye

“…Infection is due to invasion of the tissues, leading to uveitis. More serious complications may include lens dislocation and retinal detachment (170,266). Diagnosis is usually confirmed by the observation of migratory tracks across the subretina.…”

Bilateral Ocular Myiasis Interna Caused by Botfly (Oestrus ovis): A Case Report

“…Treatment may be challenging, as the worms move very quickly and between different compartments and different tissues of the eye. The physician's imagination and more than one treatment modality, such as argon laser photocoagulation, Yag laser, surgical removal, or even vitrectomy, may be required to destroy the larva [13][14][15][16][17] . Topical administration of corticosteroids for symptomatic relief and antibiotics to prevent bacterial contamination has been recommended.…”