life on planet earth on Eyesight

I have walked with people whose eyes are full of light, but who see nothing in wood, sea, or sky, nothing in city streets, nothing in books.... It were better far to sail forever in the night of blind...

On the effect of seeing for the first time after Cataract Surgery: The mental effort involved in these reasonings proves overwhelming for many patients. It oppresses them to realize, if they ever do ...

The only thing worse than being blind is having sight but no vision.