Ocular myasis and associated mucopurulent conjuctivitis acquired occupationally: A case study

Abstract

Ocular myasis and associated mucopurulent conjunctivitis in human eyes is a rare phenomenon. However, if the sheep bot fly abounds and poor hygienic environment prevails, the Oestrous ovis deposits its larvae in the conjunctival eye sac of human. The present paper reports a case study of ocular myasis among sheep farm workers caused by Oestrous ovis. The ocular myasis and the associated mucopurulent conjunctivitis are occupationally acquired in these cases. This study also suggests the treatment of patients and the recovery of the larvae.

Ophthalmomyiasis externa from Hakkari, the south east border of Turkey

“…Topical anaesthetic drops may be used to paralyse the larva or liquid paraffin may be used to asphyxiate it. The erosion of conjunctiva by bristles of larvae may facilitate bacterial infections and thereby ocular inflammation 12. Topical corticosteroids relieve the inflammation and topical antibiotics prevent secondary bacterial superinfection 13–18.…”

“…Topical corticosteroids relieve the inflammation and topical antibiotics prevent secondary bacterial superinfection 13–18. Ofloxacin and norfloxacin eye drops may be preferred for pathogenic bacteria and larvae in external disease 12. Ophthalmomyiasis is really a rare morbidity but it is common in sheep farming areas, so it could be assessed as an occupational disease.…”

Unilateral acute conjunctivitis due to Oestrus ovis in a veterinary doctor

“…The larva crawls and reaches the brain cavities; they mature and fall on the ground and become adult. [11] Occasionally, man becomes the intermediate host, with the eye being the site of infestation. [10] Oestrus ovis larvae are unable to secrete proteolytic enzymes, because of lack of bite organisms.…”