What causes cortical visual impairment?
Cortical visual impairment is caused by nerves in the brain being hurt. This sometimes happens when a baby is being born. Sometimes the baby does not get air as soon as he or she is ready to breath. The brain needs the air to stay alive. A car crash or a bad fall can also hurt the nerves in the brain. This is called traumatic brain injury. Vision after traumatic brain injury may be a lot like CVI. What kind of vision do people have who have CVI? People who have CVI have vision that does not stay the same. The vision may get better as the baby gets older and the hurt to the nerves heals. After a car crash or a bad fall, the nerves may heal as well. The vision may change all day long. People who have CVI may see something in the morning that they cannot see later in the day. Sometimes people think they are playing games when they cannot see things. They may say, “You saw that before, why don’t you see it now?” Some people who have CVI love to look at lights. Other people who have CVI hat
