You asked if there was any correlation of MS with blindness?
Many people with MS have eye problems. Optic neuritis is the most common, and is often a first sign that something’s not right. I have double vision, because I have a lesion in my brainstem but not on my optic nerve.
Neil Cavuto must have problems with his eyes, because I’ve heard him say his show would be going along just fine, then they’d come back from a commercial break and he’d be “blind” not able to read a thing (MS symptoms have a way of suddenly popping up at inopportune times.)
Here’s a webmd link..explains eye problems.
http://www.webmd.com/multiple-sclerosis/guide/multiple-sclerosis-vision-problems
I thought there might be when the article talked about thinning of the back wall of the eye.