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Dr. Mitchell, a board certified ophthalmologist, is one of an elite group of fellowship trained refractive surgeons and has performed over 5,000 refractive procedures. He is currently Medical Director of the Mitchell Refractive Surgery and Eye Center. >>Read More About Dr. Mitchell
Children should have their first eye exam at about age two, although it’s never too early to test a child’s vision and eye health. Comprehensive eye exams are essential in the diagnosis and treatment of vision problems, injury and disease. Early detection allows for treatment to begin before the child experiences difficulty in school due to poor vision, or before any permanent damage has been done to the eye(s). Exams test visual acuity, eye tracking, and focusing skills, and detect problems such as near- and far-sightedness, amblyopia, crossed eyes, dyslexia, and color blindness.
Your eye has a clear lens through which light passes, allowing you to see. When the lens loses its transparency, the cloudy tissue that develops is known as cataracts.
Cataracts cause progressive, painless loss of vision. The lens clouds naturally as we age, so people over the age of 65 usually see a gradual reduction of vision. No one is exactly sure what causes cataracts. In younger people they can result from an injury, certain medications, or illnesses such as diabetes. Prolonged exposure to ultraviolet light may also play a role in the formation of cataracts. Studies have also shown that people who smoke cigarettes have a higher risk of developing cataracts than non-smokers.
Although cataracts usually develop without apparent pain, some indications that a cataract may be forming are:
If visual impairment interferes with your ability to read, work, or do the things you enjoy then you will want to consider cataract surgery. Cataract surgery is relatively painless and is one of the most frequently performed procedures. It has a very high success rate and more than 90 percent of cataract surgery patients regain useful vision.
Glaucoma is an eye disease in which pressure inside the eye (intraocular pressure) rises dangerously high, damaging the optic nerve and causing vision loss. In a healthy eye, fluid is produced in the ciliary body, enters the eye, and then drains through tiny passages called the trabecular meshwork. In people with glaucoma, these passages become blocked and intraocular pressure rises.
Some cases of glaucoma can be treated with medications. For others, laser or traditional surgery is required to lower eye pressure. Common surgeries include:
Diabetic retinopathy is a complication of diabetes that weakens the blood vessels that supply nourishment to the retina (the light-sensitive lining in the back of the eye where vision is focused). These weak vessels can leak, swell or develop thin branches, causing a loss of vision. Changes to your vision may not be noticeable at first. But in its advanced stages, the disease can cause blurred or cloudy vision, floaters and blind spots – and, eventually, blindness. This damage is irreversible. Diabetic retinopathy is the most common diabetic eye complication and a leading cause of blindness in American adults. Macular edema, which is leaking fluid that causes blurred vision, often occurs with diabetic retinopathy.
The macula is a part of the retina in the back of the eye that ensures that our central vision is clear and sharp. Age-related macular degeneration (AMD) occurs when the arteries that nourish the retina harden. Deprived of nutrients, the retinal tissues begin to weaken and die, causing vision loss. Patients may experience anything from a blurry, gray or distorted area to a blind spot in the center of vision.
AMD is the number-one cause of vision loss in the U.S. Macular degeneration doesn't cause total blindness because it doesn't affect the peripheral vision. Possible risk factors include genetics, age, diet, smoking and sunlight exposure. Regular eye exams are highly recommended to detect macular degeneration early and prevent permanent vision loss.
Symptoms of macular degeneration include: