FIX YOUR EYESIGHT? THERE’S AN APP FOR THAT! “A system that trains your brain to overcome degrading vision as you age will soon be available as an iPhone app. . . The app helps people compensate for deterioration in their eyes’ ability to focus on nearby objects by training the brain to process the resulting blurred images.”
I have really good night vision. Some of that’s because my eyes do well with low light, but some of it, I think, is because I spent a lot of time in the dark or dim light at one point and my brain just got used to what things look like, so that it processes them better.