Dissociated vertical deviation

Dissociated vertical deviation is when one of your eyes moves up while the other stays straight ahead.

When you look at things, your eyes work together to focus on one spot. But sometimes, one eye may move up while the other stays in place.

This can happen because your eyes are not working well together or because one eye is stronger than the other. It can also happen when you're tired or stressed out.

Dissociated vertical deviation can make it hard to see things clearly and can cause headaches or eye strain. But with the help of an eye doctor, you can learn ways to improve your vision and reduce any discomfort.