This may be better posted in "senior health" which applies, but I start here.
In recent times (it could have been going on for a year or longer) I have better vision in the morning. I normally wear bifocal glasses with an underlying vision that is basically functional. That is I can get around and read large print without lenses, in fact I am now typing on a 17" computer screen without wearing glasses.
Right now (my historic eye deficiency is near sighted) I can see the TV (distance vision - about 12' away) better without my glasses on. Throughout the day I look at the computer screen without glasses - I have tried trifocals and never adjusted to them. On the computer I can always enlarge the font. Later in the day, in the evening, I see the TV better with my glasses on.
I need to get my eyes examined again, but I think this symptom goes back to before my last eye exam, but I did not mention it to my eye doctor (I do not go to an MD for my eye glasses).