Understanding the Eye Provides Insight into Liberty Eye Care
Thursday, October 25th, 2007 Subscribe To Our Feed
If you have any kind of eye-related problem then you will benefit greatly by having a little understanding of how the human eye works. Be curious and read some material online (like this website), ask friends, family or your doctor what can be done to help your vision. In this case, “curiosity killed the cat” is a load of rubbish. Be as “curious” as you want! Once you are fully armed with the facts, then you can begin to appreciate and understand the sterling services of Liberty eye care.
Parts And The Whole
Like an intricate machine, the eye is constructed of several parts and each part has an important role in the functioning of the whole apparatus. The human eye is approximately the size of a ping-pong ball and is located in a cavity known as the eye socket. The white portion of the eyeball is referred to as the sclera. This part, which covers the majority of the eyeball, is composed of a tough material.
Why Corneas Are Not Corny
The cornea is a clear dome located ahead of the eye’s colored portion. The cornea’s job is to help the eye remain focused as light enters the organ. Due to being constructed of a transparent tissue, the cornea is difficult to view.
The Apple Of My Eye
Gaining knowledge about the iris, pupil, and anterior chamber can also be beneficial if we plan to receive liberty eye care. These parts of the eye are located behind the cornea. The iris (known as the “apple of the eye”) is the part of the eye that provides its color. Muscles attached to the iris alter its form. As a result, the iris can then control the amount of light that passes through the eye’s pupil. The pupil is located in the middle of the iris; it’s the black circle that you can see. In fact, this is a gap in the iris that allows light to pass through. Pupils become smaller as light shines nearby, and then become wider with the absence of light.
Cones and Rods
Next, some knowledge about the eye’s rods and cones will allow you to better appreciate your liberty eye care. The eye’s retina utilizes special cells, termed as cones and rods, in order to handle light. Incredibly, the human eye has about 7 million cones and 120 million rods in each eye! Rods are extremely sensitive and see in white, gray and black. They inform us about the shape or form of an object.
On the other hand, cones can perceive color, and require a higher amount of light to function than rods. Cones become most effective when a person’s eye is surrounded by moderate or high amounts of light. Our retinas possess 3 varieties of cones, with each one being sensitive to either red, green or blue. With these cones we can sense a mix of light waves that allow us to view millions of colors! Understanding how these cones and rods work, can allow you to fully understand the tests that you will undergo.
The Fastest Messenger
And finally, the optic nerve acts like a kind of messenger connecting the eye to the brain. Colors and images are altered by the retina into millions of “messages” transported through the nerve. When these “messages” arrive at ‘Brain Central Station’, they are transformed into objects that we can recognize. The brain acts as a kind of translator, or super-computer, with the optic nerve being a very fast internet connection (broadband, of course!).
We are all inquisitive by nature - it’s what we humans do! By fully understanding how the eye operates, we are in a better position to appreciate the liberty eye care that we receive.
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