Do microvascular ischemic changes in the brain affect my eyes? how to treat loss of vision due to microvascular ischemic changes? thank you?

The micro vasculature of the retina is similar to the brain, so it is likely that micro vascular ischemic changes in the brain may also be present in the eye, and vice versa. The retina has very little collateral (back-up) circulation, so damage caused by blocked vessels in the eye unfortunately have very little hope for recovery. However, adaptation can occur and vision may improve over time.

Loss of vision in a 68 yo can be due to many causes, such as macular degeneration or glaucoma, and a number of systemic issues, such as diabetes should be ruled out. The term microvascular angiopathy is often used to describe white matter lesions seen on an MRI, but this is nonspecific, and further testing is required to fully objectify. See an ophthalmologist and address any visual changes.