(786) 462-9500


How Your Eye Works

The human eye is one of the most interesting organs in the entire body. No other organ is responsible for converting light into images that can be recognized by the brain. Eye doctors in Miami say that they are often asked exactly how the eye works because many people are curious as to how it functions. In order for the eye to convert light into images that people can understand, there are a few key things that happen. When a Miami Beach eye doctor explains how a normal eye is supposed to work, it can help many people with optical issues understand what their particular problem is more clearly.

How Does the Eye Convert Light Into Recognizable Images?

There are many different parts of the eye that are responsible for people being able to comprehend the world around them. The cornea, pupil, and retina are the most important parts of an eyeball, but there are many other parts of it that play a role in how it functions as well. This is what your Miami eye doctor will tell you about how your eye converts light into images that your brain will understand:

● First, light will pass through the cornea. The cornea is the clear layer that covers the eyeball and is responsible for refracting light correctly.

● The cornea will bend light so that it can pass through the pupil. The pupil functions like a camera lens, getting smaller when there’s too much light and getting larger when there isn’t enough light.

● After light has passed through the pupil, it will then go through the lens behind it. This lens is going to shorten or lengthen to help focus light rays properly as well.

● Light passes through the main portion of the eyeball, which is called the vitreous and is filled with a gel-like substance that allows an eyeball to keep its circular shape.

● In a properly functioning eye, the light will be focused directly onto the retina in the back of the eyeball after all of these steps. The retina is the part of the eye that understands what the light being shined onto it is and transfers these images to the brain.

Why do Some People Have Optical Issues?

The aforementioned steps are how a normal eye is supposed to work. However, those who have abnormally shaped corneas or other optical issues will not be able to see clearly because of this. If a cornea is too short or long, it will not refract light properly and it will not land directly on the retina as it should. This is going to result in a visual impairment that will cause someone to require glasses, contacts, or laser eye surgery to reshape the cornea. Be sure to ask your Miami optometrist about all of the corrective options available so you can see as well as possible.

photo credit: . via photopin (license)