The 1960's were years of great change: Protests (Vietnam War, Free Speech, Civil Rights), assassinations (JFK, Martin Luther King Jr, Bobby Kennedy), conflict (the Cuban Missile Crisis, the Cold War, ...
Spectacles, glasses, eyewear, bifocals - all of these are ways to correct vision. And today, they also make a fashion statement!
If your vision is poor, you know how important glasses are to your life in these modern times. How would you drive a car if you weren't able to correct your vision? How would you be able to watch tv? ...