One of the questions you always ask yourself or someone else is how do glasses work?
In fact, glasses were designed to behave in a similar way to the way the eyes work. Your eyes are similar to a camera in that it has a lens, exposure meter and also the ability to auto focus.
There are 4 major components of the eye. The cornea, iris, retina and lens.
The cornea is transparent and on top of the eye and it’s purpose is to let light flow into the pupil. The pupils function is to open and close in a way that allows it to regulate the amount of light that enters the eye and passes to your retina.
The retina contains cells that receive the light. The purposes of glasses is that they are designed to refract the line in a way that it enters into the correct spot in your eye.