My glasses

I'm nearsighted, or myopic, so I have to wear either glasses or contacts. This means that my eyes can only focus on nearer objects and not farther ones. The lenses in my eyes are not able to focus the image on the retina, at the back of my eyes, because the eye is too long. The lenses in my glasses are diverging lenses, which spread out the light so that my eyes can focus the light on the back of the eye.

When you look at the glasses closely, you can also see the way the image through the glasses is not in focus in the camera and the image does not quite line up with the rest of the page of writing. This is because of the refraction caused by the glass, and the lens is also acting to make the image seem a little smaller.