Eye Conditions

One of the foundations of the recent movement towards health care ‘wellness’ programs is that well-informed patients will make better treatment and lifestyle decisions that will lead to improved health.  Dr. Guerrieri believes that patients who are well educated in eye disease and disease prevention will have a better chance of maintaining good vision.  Consequently, we have created an on-line resource of eye care topics for your review.

In addition to our website, the Internet offers many excellent resources for eye and general medical information. We encourage our patients to contact us if they find information that generates new questions about their care.

Cataracts

A cataract is a painless, cloudy area in the lens of the eye that blocks the passage of light to the retina. The retina is the nerve layer at the back of the eye. The nerve cells in the retina detect light entering the eye and send nerve signals to the brain about what the eye sees. Because cataracts block this light, they can cause vision problems.

Corneal diseases and conditions

The term “corneal disease” refers to a variety of conditions that affect mainly the cornea. These include infections, degenerations, and many other disorders of the cornea that may arise mostly as a result of heredity.

Dry eyes

The eye depends on the flow of tears to provide constant moisture and lubrication to maintain vision and comfort. Tears are a combination of water, for moisture; oils, for lubrication; mucus, for even spreading; and antibodies and special proteins, for resistance to infection. These components are secreted by special glands located around the eye. When there is an imbalance in this tear system, a person may experience dry eyes.

Glaucoma

Glaucoma is the name for a group of eye diseases that damage the optic nerve . The optic nerve, which carries information from the eye to the brain, is in the back of the eye. When the nerve is damaged, you can lose your vision. At first, people with glaucoma lose side (peripheral) vision. But if the disease is not treated, vision loss may get worse. This can lead to total blindness over time. There are three types of glaucoma: Open-angle glaucoma, Closed-angle glaucoma, and Congenital glaucoma.

Diabetic retinopathy

Retinopathy is a disease of the retina. The retina is the nerve layer that lines the back of your eye. It is the part of your eye that “takes pictures” and sends the images to your brain. Many people with diabetes get retinopathy. This kind of retinopathy is called diabetic retinopathy (retinal disease caused by diabetes).

Diabetic retinopathy can lead to poor vision and even blindness. Most of the time, it gets worse over many years. At first, the blood vessels in the eye get weak. This can lead to blood and other liquid leaking into the retina from the blood vessels. This is called nonproliferative retinopathy. And this is the most common retinopathy. If the fluid leaks into the center of your eye, you may have blurry vision. Most people with nonproliferative retinopathy have no symptoms.

Macular degeneration

Macular degeneration is the leading cause of severe vision loss in people over age 60. It occurs when the small central portion of the retina, known as the macula, deteriorates. The retina is the light-sensing nerve tissue at the back of the eye. Because the disease develops as a person ages, it is often referred to as age-related macular degeneration (AMD). Although macular degeneration is almost never a totally blinding condition, it can be a source of significant visual disability.

There are two main types of age-related macular degeneration: Dry Form, and Wet Form.

Retinal detachments

The retina is a thin membrane of nerve tissue that lines the back of the eye . When part or all of the retina comes off (detaches from) the back of the eye, it is called retinal detachment.

The nerve cells in the retina normally detect light entering the eye and send signals to the brain about what the eye sees. But when the retina detaches, it no longer works correctly. It can cause blurred and lost vision. Retinal detachment requires immediate medical care. If done soon enough, surgery can save lost vision.

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Check Coverage

Below are links to websites of some insurance providers we contract with. You may check your insurance coverage before your appointment to verify that you are eligible for services or materials.

EyeMed/Aetna (including UC Davis SHIP)

MES

Safeguard

Spectera

Superior Vision

VSP

Quick About

Dr. Guerrieri received his bachelors of science degree from the University of California, Davis in 1981 and his doctor of optometry degree from the University of Missouri, St. Louis in 1986.

Dr. Guerrieri is a member of the American Optometric Association, the California Optometric Association and the Sacramento Valley Optometric Society. He is also a member of the contact lens section of the American Optometric Association and specializes in hard to fit contact lens wearers. He lives out in the country in Davis where he and his wife, Maureen, have raised their four children.

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