The easiest method is by focusing too much on bright spots (i.e. TVs, Computers, Light blubs, Sun) especially when the light around the area is much darker than that source of intense light.
Other methods include physical contact to your eyes( such as punching, poking) or viruses and genetic diseases.
he was five
no, only in the eye witch the optic nerve is damaged
He isn't blind - he has sight in one eye. The other one was damaged playing sport at school.
The dog could have an infection, something in it's eye, or have damaged the eye itself. It would need to see a vet asap for treatment as it would be a source of discomfort/ pain, and depending on the cause to save sight in the eye.
Poodles have very good eye sight.
do high cholesterol affect your eye sight
Poodles have very good eye sight.
The eye is the organ of sight
the comon eye sight for humans is the pupil
its usually the smaller the words are the better your eye sight! x
the eye is an organ of sight
they have VERY good eye sight