Radical exenetration of the orbit following traumatic myiasis in a crossbred cow

Introduction appears to lost vision in the affected eye as it was not able to visualize and feed or water kept on its right The eye is located in the orbital cavity of the side. Animal was diagnosed pregnant at the local skull. It consists of eyeball, optic nerve, and associated veterinary institution at routine three months pregnancy structures such as eyelids, conjunctiva, orbital fascia, diagnosis protocol. muscles and lacrimal apparatus [1].The exenetration of orbit is indicated in malignancy or neoplastic Treatment growth in the orbit, endophthalmitis or panophthalAll the physiological and clinical parameters of mitis leading to blindness in the affected eye, trauma the animal were within normal range. Clinical or proptosis of the globe and penetrating wounds examination revealed a chronic wound near the medial associated with the protrusion of the ocular contents canthus on lower eyelid. The wound was extensively leading to irreversible damage of the eye, and in infested with maggots with a very obnoxious odour suppurative destruction of the eye [2,3].The and protrusion of ocular contents. There was a exenetration procedure involves removal of globe and complete loss of the vision in the affected eye. The extra-ocular muscles along with extensive affected area was thoroughly cleaned with normal debridement of the para-orbital structures and is a cost saline solution, maggots were removed using mixture effective treatment for a chronic wound infested with of maggoticidal and antibacterial wound dressing maggots [4]. This procedure is effective to safeguard ® powder (Negasunt ; Pfizer Ltd., Germany) in liquid the health of animal when other conservative paraffin. Subsequent daily dressing of the wound was treatments are not viable alternates. Due to the type of done with Neosporin ophthalmic ointment. However, animal rearing practices, particularly in the rural the routine treatment of the infected wound was marginal farming conditions, manifestation of a continued on the protocol mentioned above. wound by flies is not uncommon. Whilst majority of Ten days after parturition, the animal was remaggot wounds can be effectively treated using examined. The wound was still present with no standard conservative treatments; maggot manifesevidence of maggots. Considering the chronic nature tation to an eye wound require immediate attention of the wound with resultant prolapse of ocular contents failing which it can lead to development of severe exenteration of the orbit was decided. The animal was ocular pathological conditions. restrained in lateral recumbency with the affected side Case history upwards. Surgical site was aseptically prepared. Analgesia at the site of operation was achieved by A 9 month pregnant crossbred cow aged about 7 performing auriculopalpebral and retrobulbar nerve years was presented with the history of a chronic blocks along with the infiltration of 2% Lignocaine maggot wound on the medial canthus of right eye and hydrochloride (Xylocaine, Astra Zeneca Pharma India its treatment at local veterinary institution for about Limited) at the site of incision. The upper and lower last four months without any progressive healing. The eyelids were stay sutured in continuous fashion and an history further revealed continual serosanguinous to incision encircling the eyelids was made approximately exudative lacrimal discharge from the affected eye 0.5 cm from the margin of the lids, but it was slightly since the beginning of the condition along with extended on the lower eyelid so as to enclose the profound inflammation of the orbit. There was history affected portion. The eye ball was removed after of foul smelling odour in the cow shed. The animal Vet. World, 2012, Vol.5(6): 376-377 RESEARCH