My husband had a day a few weeks ago that his vision went out in one eye for a full day. We went in to see our normal optometrist who is very, very concerned. We also talked to his brother who is a PhD in pharmacology and researched eyes for many years, who is now also very, very concerned. My husband exercises and overall eats pretty well. He's not overweight, doesn't smoke or drink. I'm sort of a basket case. They both think it could be ischemia. He's only 38.
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“All his life he tried to be a good person. Many times, however, he failed.
For after all, he was only human. He wasn't a dog.”
― Charles M. Schultz
Warning: The above post may be dripping in sarcasm and full of smartassedness.