![]() ![]() There is a good response to combined subconjunctival injection of oxytetracycline antibiotic and steroids (2-3ml of 5 or 10% oxytetracycline mixed with 0.5-1ml soluble dexamethasone) in acute cases administered by the vet. Very painful particularly in direct sunlight Development of immunity following infection is variable. Fly control using ear tags and pour-on insecticides is never absolute and repeated treatments prove costly. Outbreaks of IBK may occur after the introduction of purchased stock therefore, whenever possible, all new stock should be managed separately as one group away from the main herd. Injection of all at-risk cattle with a single intramuscular dose of long-acting oxytetracycline could be considered in severe epidemics but there are no supporting field data. Severely affected cattle should be housed with ready access to food and water. Temporary adhesive eye patches can also be used to provide protection from environmental conditions. The sutures must not contact the cornea and are removed after two weeks. In severe cases vets can suture the eyelids together under local anaesthesia around the eyelids to block the nerve supply. When subconjunctival or topical treatment is not practical then a single dose of long acting oxytetracycline or florfenicol, have been reported to be effective (but more expensive). This technique has no advantage over injection into the muscle except for the lower antibiotic dose. Injection into the upper eyelid conjunctiva is commonly used but this technique will not give residual antibiotic levels in the eye and relies on leakage onto the cornea from the injection site. with penicillin or oxytetracycline) into the conjunctiva around the upper part of the globe can be very effective but is difficult to achieve in fractious cattle and requires good restraint. Topical ophthalmic antibiotic cream containing cloxacillin is commonly used. The main differential diagnoses your veterinary practitioner will consider includeįig 4: IBR is one of the main differential diagnoses your veterinary practitioner will consider. In severe cases, ulceration may progress to corneal perforation (rupture of the eye).įig 3: Advanced case of IBK showing deep corneal ulceration Spontaneous recovery may occur in mild cases three to five days after clinical signs are first observed, and is complete two weeks later. Note the obvious tear-staining of the face. pain when the eye is exposed to direct sunlightįig 1: IBK lesions are very painful and disrupt grazing patterns causing poor performance and even weight loss.įig 2: There is marked pain when the eye is exposed to direct sunlight.pus matting the lashes and hair of the face.Lesions in both eyes cause temporary blindness and the affected animals tend to wander aimlessly about. The eye lesions are very painful and disrupt grazing patterns causing poor performance and even weight loss. ![]() There is marked pain when the eye is exposed to direct sunlight. Most eye lesions are selected for treatment on the basis of obvious tear-staining of the face which becomes thicker and opaque, matting the lashes and hair of the face. ![]() The pain associated with this condition is more intense in strong sunlight. Head and nuisance flies can act as mechanical vectors for M. It is more commonly seen in young stock than adults. IBK is a highly contagious disease caused by a bacterium Moraxella bovis that can spread rapidly during the summer months. ![]()
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