It never hurts your eyesight to look on the bright side of things.
To become an ace a fighter must have extraordinary eyesight, strength, and agility, a huntsman's eye, coolness in a pinch, calculated recklessness, a full measure of courage and occasional luck!
When I started using the extreme short depth of field and single point of focus, I was trying to replicate my changing eyesight. We have binocular vision; one eye perceives space from the other. I don't experience a scene visually at F32. It's more like F1.4.
When a poor man, hungry and unseeing because his eyesight is failing, grabs me and starts begging, I feel the Nazi in myself. I abhor this man, and I want him to keep his hands off me.