The eye contains may different parts that work together to make vision possible. Many people do not understand how the eyes work, however. A lack of understanding about the parts and function of the eyes could make retinal diseases and conditions like tears of detachment seem confusing.
Dr. David J. Parks take time with patients at his Beverly Hills, CA office to go over the basics of vision. Right now, the Pacific Retina Specialists team would like to cover how the eye works in simple terms.
Before getting into the way the eye works, let’s go over the parts of the key parts of the eye:
Now knowing all of the parts of the eye, let’s get into the basics of how vision works.
Light first passes through the cornea, which bends the light in a manner such that it can enter the pupil. If there is too little or too much light, the iris can open or close to allow more light or less light in.
As the light enters the pupil, it then hits the lens of the eye. Like the lends of a camera, the eye’s lens can lengthen or shorten its width in order to properly focus the light.
After being focused by the lens of the eye, the light passes through the vitreous gel, the substance that allows the eye to maintain its round shape. The light is all focused to a point on the retina.
The retina has many parts, but the key one we want to focus on are the photoreceptor cells. There are two kinds of photoreceptors: rods and cones. Rods work with low light levels and are essential for night vision. Cones are essential for color vision. There are three kinds of cones: red, blue, and green. The human eye contains about 6 million cones.
The rods and cones in the retina help interpret the light signals that travels through the eye. These light signals are interpreted into millions of light signals that are sent into the optic nerve. All of these visual signals are then relayed to the brain to be interpreted into images.
As you can imagine, the with so many different parts of the eye, visions problems can occur when one part or multiple parts of the eye no longer function properly. Problems with the cornea, for instance, can result in refractive errors such as myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. Issues with the retina could result in major vision problems since the photoreceptors could be damaged or not functioning properly.
During an eye exam, we will be sure to perform a full eye exam and look at all of the parts of your eye to figure out what problem(s) you may be experiencing.
To learn more about eye health and your vision, we encourage you to contact Pacific Retina Specialists. Our team is here to provide you with answers to your questions and information on your concerns. You can also reach our office by phone at (310) 289-3666.
Great Gratitude to Dr. Parks and his staff for the gift of continued sight! I HIGHLY COMMEND AND RECOMMEND THEM!!!