Well, the eye thing is probably just age + lack of sleep.

Guess who has to be in bed before midnight from now on? Yay. The kicker is, compared to multiple sclerosis, aneurysms, strokes, diabetes, high blood pressure, nerve damage to the optic nerve, and the classic brain tumor, “Your eye muscles get tired faster because you’re old and have always had one eye worse than the other” is good news. Unrelated note: don’t look up medical sh*t on the Internet until after you eat. I know that sounds counterintuitive, but it’s not, really.