The optic nerve carries data from the eyes to the brain. The brain then turns these signals into images. When blood flow to the optic nerve is reduced – either by fluctuations in blood pressure, or less commonly by inflammation in the blood vessels, the nerve does not get enough oxygen or nutrition. The optic nerve then stops working properly.
ION can affect your central (detail) vision or side (peripheral) vision—or both.
Dr. Agarwal may note swelling of the optic nerve and be able to explain the issue further. See below for more information from Dr. Agarwal’s specialty organization.