In summer, we frequently see inflammation of the eyelids and/or cornea in young cattle and cows (as well as small ruminants). This condition is called "Pinkeye." It is usually caused by a bacterium (mainly Moraxella bovis). The infection rate varies from region to region.
A bull will perform a broadside threat prior to attack.
He will stand sideways so the person or other bull can see how big and powerful he is.
In such a situation, the person may just back slowly away from the bull. NEVER RUN away and do not turn your back on him.
My experience is that cattle don't attack people spontaneously.
There is always a clear reason.
And before the animal attacks, it has already warned you several times through body language.
Of course, we must recognize these signals and be willing and/or able to respond to them appropriately!