Batalia Eye Hospital

INTRODUCTION

External Myiasis is the infestatation of external ocular tissues (Eyelids,conjunctiva, lacrimal duct) of man by botfly larva. Considering the world literature this condition is not very uncommon. Ophthalmic myiasis has been reported from different parts of the world in rural areas only amongst farmers,agriculturists and shepherds. It is still frequently misdiagnosed as allergic or viral conjunctivitis

This case is reported from urban region and ophthalmic surgeons need to be aware :

Presenting a case of Ophthalmic Myiasis from Jabalpur.

The case was a school going boy of 14 yrs of age residing in good locality. While eating fast food he felt severe FB. Sensation in lt. eye and eye became red with lacrimation and reached my hospital within 30 minutes.

There was no history of allergy or conjunctivitis..

On slit lamp examination attempt was made to detect any foreign body as there was an evidence of unilateral inflammation.

A fast moving multiple translucent foreign bodies identified in bulbar conjunctiva avoiding light..Diagnosis of Myiasis was made by direct visualization under higher magnification. There was no corneal or intraocular involvement.

After instillation of local anaesthetic drops twenty eight paralysed larvae were removed by minimal suction force with rubber dropper

To prevent damage to the larva. Material was collected in normal saline.

Foreign body was mounted on microscope slide examined carefully and photographed under microscope. The larvae measured 2-4 mm In length showing active forward progressive movement under    microscope.

The larvae were identified as oestrus ovis. (sheep botfly) on the basis of their spindle shaped, the pair of sharply curved mouth hooks. The larvae were fast moving using mouth hooks for Invasion and fixing to the tissue.

No literature described and demonstrated live botfly larva movements under cover slip of microscope.

Treatment consists of mechanically carefully removing of larva. Conjunctival sac washed with Betadine solution. Topical steroids and antibiotic drops. The patient was symptomless within few hours.

Relieved of symptoms completely.

There must be proper communication

between ophthalmologists and pathologists.

I am thankful to Dr. Sharad Jain Associate Professor Pathology Medical College Jabalpur  for his help and evaluation in this case.

 For Watch Vedio : 

http://www.youtube.com/watch?v=QtL6BD5rTTA&feature=youtu.be

http://www.youtube.com/watch?v=4TW3-UmVod8&list=UUsNE3Pq1Wcmpo1bIil04oQw