"blepharospasm" - 1 õppematerjal

Infectious bovine keratoconjunctivitis 2019

, 1998). Clinical signs The clinical occurrence, stability of infection, animal condition and rate of progression of the disease will be different from individual to individual (Postma et al., 2007). The disease usually is acute and tends to spread rapidly in all species, specially Hereford or Hereford- crossbred cattle are more sensitive to the disease (Angelos, 2015). Earliest references of the disease are involuntary tight closure of the eyelids also known as blepharospasm, extreme sensitivity to light (photophobia) and copious watery ocular discharge, what soon becomes purulent. There also may be present abnormally large amount of blood in conjunctiva besides edematous and blepharitis may be present. These sings are also visible on the figure 1. During 24–48 h after the beginning of clinical signs, then there develops cloudiness, usually in the centre of the cornea and continues to spread over the whole cornea (Postma et al., 2007).