Differential diagnosis and proper approach for ophthalmomyiasis externa: an experience of 12 patients

Abstract

Objective. To evaluate the differential diagnosis and therapy of patients who had ophthalmomyiasis externa, which is a self-limiting parasitic disease and is formed as a result of infestation of ocular surface with myiasis flies. Method. A retrospective study. Results. In our series we evaluated 12 patients attending intense eyelid edema and mimicking an acute catarrhal conjunctivitis, with symptoms of burning, stinging, itching, and increase in lacrymation as well as the sense of foreign body moving in the eye. After further biomicroscopic examination 1 – 2 mm size of mobile, black headed transparent larvae were seen. After mechanical removal of larvae from the eye, topical antibiotic and mild steroid drops were sufficient for improvement. Conclusion. We hereby want to emphasize the importance of careful examination and detailed anamnesis even in conjuncitivitis cases.

Keywords

• Conjunctivitis, oestrus ovis, ophthalmomyiasis

References

1. Wong D. External Ophthalmomyiasis caused by the sheep bot Oestrus ovis L. Br JOphthalmol. 1982;66(12):786-7.
2. Grammer J, Erb C, Kamin G, Wild M, Riedinger C, Kosmidis P, et al. Ophthalmomyiasis externa due to the sheep botfly Oestrus ovis (Diptera: Oestridae) in southwest Germany. Ger J Ophthalmol. 1995;4(3):188-95.
3. Narayan S, Jayaprakash K. Incidence of ocular myiasis due to infection with the larva of Oestrus ovis (Oestridae Diptera). Indian J Ophthalmol. 1991;39(4):176-8.
4. Pandey A, Madan M, Asthana AK, Das A, Kumar S, Jain K. External ophthalmomyiasis caused by Oestrus ovis: A rare case report from India. Korean J Parasitol. 2009;47(1):57-9.
5. Chandra DB, Agrawal TN. Ocular myiasis caused by oestrus ovis. (A case report). Indian J Ophthalmol. 1981;29(3):199-200.
6. Clavijo E, Requena JM, García F, del Valle J, García JM. Conjunctival ophthalmomyiasis caused by Oestrus ovis. Enferm Infecc Microbiol Clin. 1993;11(6):321-3.
7. Ranjan R, Jain A. External ophthamomyiasis. Oman J Ophthalmol. 2014;7(3):160-1.
8. Odat TA, Gandhi JS, Ziahosseini K. A case of ophthalmomyiasis externa from Jordan in the Middle East. Br J Ophthalmol. 2007;91 Video report.

9. Carrillo I, Zarratea L, Suárez MJ, Izquierdo C, Garde A, Bengoa A. External ophthalmomyiasis: a case series. Int Ophthalmol. 2013;33(2):167-9.
10. Joshi K, Sindal DK, Pawar V, Pawar S. Uniocular external ophthalmomyiasis due to Oestrus ovis: two cases on two consecutive days. Int J Recent Trends in Sci and Tech. 2013;7(3):89-90.
11. Pampiglione S, Gianetto S, Virga A. Persistance of human myiasis by Oestrus ovis L. (Diptera: Oestridae) among shepherds of the Etnean area (Sicily) for over 150 years. Parassitologia. 1997;39(4):415-8.
12. Pather S, Botha LM, Hale MJ, Jena-Stuart S. Ophthalmomyiasis externa: case report of clinicopathological features. Int J Ophthomic Pathol. 2013 Feb 18;2(2). doi: 10.4172/2324-8599.1000106.
13. Glasgow BJ, Maggiano JM. Cuterebra ophthalmomyiasis. Am J Ophthalmol. 1995;119(4):512-4.
14. Sharifipour F, Feghhi M. Anterior ophthalmomyiasis interna: an ophthalmic emergency. Arch Ophthalmol. 2008;126(10):1466-7.
15. Gholamhossein Y, Behrouz H. External ophthalmomyiasis presenting to an emergency department: corneal findings as a sign of Oestrus ovis. Korean J Ophthalmol. 2013;27(5):341-4.
16. Siqauke E, Beebe WE, Gander RM, Cavuoti D, Southern PM. Case report: ophthalmomyiasis in Dallas County, Texas. Am J Trop Med Hyg. 2003;68(1):46-7.