Advanced Eye and Laser Center of California, Inc. | Dr. Paul Huynh
Thursday, September 25, 2008
How We See Our World
Our eyes are master manipulators of light. Every element of every layer is responsible for its own unique function – bending, reshaping and focusing light rays into comprehensible images that our brain interprets. These miraculous functions synchronize with each other in milliseconds creating the visual experiences of our world.
Our sight goes through a complex process from the outer to the inner eye. Light is reflected off objects and then absorbed through a sequence of layers of the eye. It begins with the cornea, which is the clear, outer part of the eye. Two-thirds of the focusing function starts here. Light is bent or refracted by the cornea before it enters the inner eye to the retina.
Pupils control how much light enters the eye. Surrounded by the muscles of the iris, the pupil dilates when light is low and contracts if light is too intense controlling the amount of light rays that enter the inner layer of the eye. Just behind the pupil is the lens, which is responsible for the other third of the focusing function. The lens focuses between near and far objects.
The retina, covered by millions of photoreceptor cells, is found on the inside wall of the back of the eye. The macula takes up about 10 percent of the retina’s center detailing and sharpening the color of the image before the signal is sent to the brain through the optic nerve.
When the eye’s vision decreases, it experiences refractive errors including: myopia or nearsightedness, hyperopia or farsightedness, or astigmatism. In the San Diego, California area, please contact the eye and laser specialists at Advanced Eye & Laser Center of California, Inc. for all your vision needs. We guarantee quality results because your complete satisfaction is our goal.
Our sight goes through a complex process from the outer to the inner eye. Light is reflected off objects and then absorbed through a sequence of layers of the eye. It begins with the cornea, which is the clear, outer part of the eye. Two-thirds of the focusing function starts here. Light is bent or refracted by the cornea before it enters the inner eye to the retina.
Pupils control how much light enters the eye. Surrounded by the muscles of the iris, the pupil dilates when light is low and contracts if light is too intense controlling the amount of light rays that enter the inner layer of the eye. Just behind the pupil is the lens, which is responsible for the other third of the focusing function. The lens focuses between near and far objects.
The retina, covered by millions of photoreceptor cells, is found on the inside wall of the back of the eye. The macula takes up about 10 percent of the retina’s center detailing and sharpening the color of the image before the signal is sent to the brain through the optic nerve.
When the eye’s vision decreases, it experiences refractive errors including: myopia or nearsightedness, hyperopia or farsightedness, or astigmatism. In the San Diego, California area, please contact the eye and laser specialists at Advanced Eye & Laser Center of California, Inc. for all your vision needs. We guarantee quality results because your complete satisfaction is our goal.
posted by Patti at 11:57 AM
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