Brain & Eye Health

What part of the brain controls vision? Learn how the brain controls your eyesight and how vision is a complex function involving multiple brain lobes.

 Learn how some studies have found that certain changes in vision and the eyes may help detect early signs of Alzheimer's and related dementias.

Learn how Parkinson's disease affects eyesight, causing vision changes like double vision and dry eyes. Explore causes and management strategies.

Regular exercise can have positive effects on your cognitive function, especially during child development and the aging process.

Learn about the different types of optical illusions, how they work, and how the brain sometimes misinterprets signals the eyes send.

Can vision health reduce dementia risk? Learn how visual processing, eye health and new research may link vision loss to cognitive decline.

A visual hallucination is seeing something that is not physically there. Learn what causes visual hallucinations and the most common types.

Occipital lobe seizures, a rare type of seizure, can affect vision and other brain functions. Learn about their symptoms, causes and treatment options.

Alice in Wonderland syndrome is a set of symptoms involving a change to personal and visual perceptions. Learn more about this condition.

A stroke can result in many changes to vision, including visual field loss, double vision, and difficulties with visual perception and visual memory.

Schizophrenia is a mental disorder that can also impact vision. Learn more about the visual symptoms and changes associated with it.

Learn all about cranial nerve palsies and how they affect the eye — visual symptoms, causes, treatment and when to see a doctor.

The 7th cranial nerve supplies the muscles of the face as well as the eyes. Learn how facial nerve palsy can impact your vision and eye health.