As I remember that Twilight Zone episode. It wasn’t his eyesight that he lost but the ability to repair or get a new pair of glasses.
I could always wear my contacts, or do what my wife has been badgering me to do - get the laser surgery. ( I will still likely need reading glasses!) I only got the contacts for martial arts (and other sports - e.g., softball!) where glasses are really inappropriate. I have finally decided that I am too old to do things like sparring, (Meh! may give up softball too!) etc. My orthopedics doc says he will miss me.
I have always been an enthusiastic but athletically average individual.