Infectious bovine keratoconjunctivitis 2019
centre of the cornea and continues to spread over the whole cornea (Postma et al., 2007).
3
Figure 1 IBK damage in a calf eye. Early IBK lesions can be quite small and difficult to
identify. On the figure you can notice fluorescein dye uptake at 6 o`clock, this shows the
characteristic of a foreign body. In addition, other clinical signs can be found such as
excessive lacrimation, epiphora, blepharospasm, also photophobia may be beneficial to look
for to recognize such cases (Angelos, 2018).
Often at first one eye is affected, but nevertheless there can take place the cross-infection and
both eyes may be involved. If both eyes are damaged, then the animal may be hesitant to
move. At this stage there may also develop corneal ulceration (Brown et al., 1998). The cattle
lose some weight because the decreased appetite and ocular discomfort or visual disturbance
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