What Allows You To See? Glasses!

Your eyes are two of the most high-definition cameras known to man. The brain is constantly being streamed high resolution images of the world around us directly from the eyes. If it weren't for the brain, the eyes would just be absorbing light without the ability to interpret what exactly they were seeing. It would be like filming an amazing hi definition film, but never being able to watch it because you don't have a computer or television.

Eyeballs work similarly to a camera in that the light that bounces of the objects around you are taken in through the lens and recorded on the retina for a split second. The image your eyes see from the light bouncing off of these objects is actually painted upside down before it is sent to the brain for processing. Seeing things upside down would be somewhat confusing, so the brain takes the images received from your eyes and instantly flips it to the correct orientation. Check out more information on how our eyes work.

Your eyes and how you process the world around you is one of the most fascinating parts of the human body. They are able to adapt to almost any lighting condition and can see things at a great range. With all of the components of your eyes working perfectly and in unison, the world around us is painted in a crystal clear, sharp picture. Due to genetics, strain, and disease, our eyes can begin to deteriorate, or become damaged, and develop things like cataracts (clouding of the eye's lens.)

Visual impairments are often easily treated, so it is important that if you are having trouble seeing clearly that you contact your local Optometrist as soon as you are able to.

The three processes involved in vision are; mechanical, chemical, and electrical.

When the light bouncing off of the objects around you first enter the eye, it is shaped by the cornea to focus it before it enters the lens. An astigmatism, which is an abnormal curvature to the cornea, causes the images captured by that area to become blurry and unfocused.

The part of your eye that is responsible for determining how much light is allowed to pass through the lens is known as the iris. It is the colored portion of the eye. You have probably noticed that the more light there is, the more your iris expands, leaving less of a hole for light to enter the lens. The less light there is, the more the iris shrink so that more of the light is allowed in. Check out these stylish glasses.

Cones and rods (photoreceptors) chemically transform the light entering your eye into electrical signals.

These electrical signals are then sent to the optic nerve and transported to the brain for processing.