Thank you Dr. Khu for your quick response!
I wanted to give you some answers to your questions and just heard back from my husband on what he would like me to mention.
He is a 39 year-old of Northern European origin (Norwegian). He does not have any generalized weakness, weight loss, scalp tenderness, or jaw pain with eating. (He does currently have a broken filling with a crack in the tooth. He is having that re-filled soon.)
It may be important to mention that he spends all day looking at a computer screen at work. If one eye is trying to compensate for the other one weakening, might that not cause pain? He is definitely planning on getting his vision tested as soon as possible.
Thank you very much for any additional info,