H54: Visual impairment including blindness (binocular or monocular)

H54.3: Mild or no visual impairment, binocular

To be able to see, light needs to fall into our eye. The light falls through the eye to a layer inside the eye. From there, the optic nerve routes the information on to the brain. The brain converts these impressions to images.

There are different reasons why one can no longer see, or see properly. The eye, the optic nerve or the brain may be damaged. This type of damage may occur due to other disorders or injuries, for example.