Do you think we were any different than todays soldiers?
Yes, I do.
You didn't spend your developing years staring at a TV. Your generation didn't may have read more books---assuming bad on the eyes---but you probably spent much more time active with outdoor activities. Your Mom fed you carrots, brocoli, beans---today, turn-key kids feed on pizza and fries.
I've seen glasses in the Hollywood war movies. Remembering "The Devils Brigade" when the Close Combat trainer made his entry, he calmly removed his spectacles before flipped Claude Akins onto the dinning table.
Then there were the generals and staff officers. I have a book about an officer on Gen. Mark Clark's staff who wore glasses. But having to wear them in combat?? I assumed if they needed them, they kept it a secret and/or removed them when the firing started---a practice I would not recommended.
Steve