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Case Reports
. 2017 Feb 3:6:11-14.
doi: 10.1016/j.ajoc.2017.01.002. eCollection 2017 Jun.

A case of ophthalmomyiasis interna in the Pacific Northwest

Homer H Chiang  1 , Rasanamar K Sandhu  2 , Justin Baynham  3 , David J Wilson  4 , Andreas K Lauer  4
Affiliations
Case Reports

A case of ophthalmomyiasis interna in the Pacific Northwest

Homer H Chiang et al. Am J Ophthalmol Case Rep. .

Abstract

Purpose: We report a case of ophthalmomyiasis interna successfully removed in toto with pars plana vitrectomy.

Observations: An 84-year-old woman with recent close contact with lambs presented with a new floater. Examination revealed subretinal tracks pathognomonic for ophthalmomyiasis and a larva suspended in the vitreous. The larva was successfully removed in toto with pars plana vitrectomy by aspiration through the vitreous cutter.

Conclusions and importance: Aspiration with pars plana vitrectomy can be considered a primary therapeutic modality for botfly larvae suspended in the vitreous. In our case, in toto removal of the larvae reduced the risk of inflammatory reaction.

Keywords: Oestrus ovis; Ophthalmomyiasis interna; Sheep botfly; Vitrectomy.

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Figures

Fig. 1
Fig. 1
(A) Ultra-wide field color fundus photo of the right eye demonstrating peripheral hypopigmented subretinal tracks and a larva in the vitreous anteriorly (white circle). (B) Ultra-wide field fundus autofluorescence photo highlighting the subretinal tracks. (C) Color slit lamp photo of the larva suspended in anterior vitreous. (D) Infra-red image of larva.
Fig. 2
Fig. 2
Histological image of the retrieved specimen demonstrating transparent body with tapered ends, mouth hooks, and body spicules.
See this image and copyright information in PMC

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