Showing posts with label spectacles. Show all posts
Showing posts with label spectacles. Show all posts

Sunday, February 23, 2014

Why do some people wear spectacles?

If your eyes are healthy, you should be able to comfortably see objects which are many kilometers away and to immediately shift your gaze to read a book of small print lying on your knee. You should be able to do this instantaneously with no conscious feeling of your eyes having changed focus.