Blurred vision can result from nerve and brain issues, even if the eye is otherwise healthy. When light strikes the retina, the optic nerve carries the signals to the brain, which deciphers them and forms images that we perceive as vision. Inflammation or compression of the optic nerve interferes with the signals that are carried to the brain and can result in blurred vision. Traumatic brain injury, brain tumor, stroke, and other problems involving the brain can cause blurry vision, as well.

Azret Ayubov / Getty Images
This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.