Monday, April 28, 2014

How to See Without Glasses

If you’re in a pinch… you forgot your glasses… or your vision is blurry… try this trick.

Make a tiny hole with you finger… look through it… and the world will become clear again. This works no matter how blurry your vision is. You can test yourself in this video below.

Science explains this all. Light is reflected off an object… enters our eyes… and hits our retinas to see an object. The lens focuses the light and corrals it into a crisp image.

The problem is the lens can only focus at certain distances. For instance, if you’re far-sighted, you can see a far distance… but you have trouble with short distances. To fix this, we have muscles that squeeze our lenses. This changes our focal distances… and decreases blurriness.

There is no blur since light is coming from the small opening. A small opening can focus light coming from any distance… making the image clear.

1 comment:

phyllis66 said...

This is amazing! No one would believe this until they try it for themselves. Thanks for this one.