types of cataracts of the eye
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Cataracts Types of cataracts include: 1  A subcapsular cataract occurs at the back of the lens. 2  A nuclear cataract forms deep in the central zone (nucleus) of the lens. 3  A cortical cataract is characterized by white, wedge-like opacities that start in the periphery of the lens and work their way to the center in a spoke-like fashion.
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About Cataracts The most common symptoms of a cataract are: Cloudy or blurry vision. Colors seem faded. Glare. Headlights, lamps, or sunlight may appear too bright. A halo may appear around lights. Poor night vision. Double vision or multiple images in one eye. (This symptom may clear as the cataract gets larger.)
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Cataracts Cataracts: Cataract surgery. A cataract is an eye condition where the lens of the eye gradually becomes cloudy – usually as part of the natural aging process. The only effective treatment is surgery. Cataract surgery involves removing the cloudy lens and replacing it with an artificial one.Cataracts cause vision loss. Your eyesight becomes increasingly dull and blurry, as if you were looking at things through a veil or fog.
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Abscess What Causes a Skin Abscess? Skin abscesses are typically caused by either an inflammatory reaction to an infectious process (bacteria or parasite) or, less commonly, to a foreign substance within the body (a needle or a splinter, for example).
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Cataracts in Dogs Though dogs of all ages and breeds can develop cataracts, they are more commonly found in Smooth Fox Terriers, American Cocker Spaniels, Havanese, Bichon Frise, Silky Terriers, Miniature and Standard Poodles, Miniature Schnauzers, and Boston Terriers.
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What are the symptoms of cataracts? Symptoms include blurred, cloudy, or double vision; sensitivity to light; and difficulty seeing at night. Without treatment, cataracts can cause blindness. There are many different types and causes of cataracts. They may occur in people of all ages, but are most common in the elderly.
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Age Related Cataracts Many cataracts take years to develop to the point where vision is seriously affected. Most occur as a result of the normal aging process. The types of age-related cataracts are usually described by their location in the lens. They are: nuclear cataracts, cortical cataracts and subcapsular cataracts. Nuclear cataracts occur in the center of the lens and may induce other eye problems, such as myopia. A cortical cataract, which tends to occur more in persons with diabetes, begins at the outer portion of the lens, then slowly moves inward.
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- Although most cataracts are related to aging, there are other types of cataract: 1  Secondary cataract. 2  Cataracts can form after surgery for other eye problems, such as glaucoma. 3  Cataracts also can develop in people who have other health problems, such as diabetes.4  Cataracts are sometimes linked to steroid use.here are two types of cataract surgery. Your doctor can explain the differences and help determine which is better for you: 1  Phacoemulsification, or phaco. 2  A small incision is made on the side of the cornea, the clear, dome-shaped surface that covers the front of the eye. 3  Your doctor inserts a tiny probe into the eye.
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Cataracts A cataract is a clouding of the lens of the eye. Cataracts are extremely common, and most cataracts are a result of the aging process. Although many cataracts are not significant enough to require treatment, surgical removal of cataracts is usually safe and effective, resulting in improvement of vision.
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- There are four main types of glaucoma: 1  chronic open-angle glaucoma – the most common type which often has few symptoms. 2  acute angle-closure glaucoma – which often has severe symptoms.  secondary glaucoma – caused by other conditions or eye treatments.
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IOL Implants: Lens Replacement After Cataracts Monofocal IOLs The most common type of lens used with cataract surgery is called a monofocal IOL. It has one focusing distance. It is set to focus for up close, medium range or distance vision. Most people have them set for clear distance vision. Then they wear eyeglasses for reading or close work.
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Snowflake Cataracts There are various types of cataracts. The most common type is a nuclear sclerotic cataract which is when the central part of the human lens gets denser and becomes cloudy or opaque. A snowflake type cataract is not very common and is associated with diabetes. It is derived from the fact that the lens looks like white opacities reminiscent of snowflakes. Snowflake cataracts can also occur in non-diabetics too, although very uncommonly. There is no known cause of these types of cataracts.
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Cataracts But researchers worldwide have identified factors that may cause cataracts or are associated with cataract development. Besides advancing age, cataract risk factors include: 1  Ultraviolet radiation from sunlight and other sources. 2  Diabetes. 3  Hypertension. 4  Obesity. 5  Smoking. 6  Prolonged use of corticosteroid medications.
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Are There Different Types of Cataracts? This is the most common type of age-related cataract, caused primarily by the hardening and yellowing of the lens over time. Nuclear refers to the gradual clouding of the central portion of the lens, called the nucleus; sclerotic refers to the hardening, or sclerosis, of the lens nucleus.
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Cataracts A cataract is a clouding of the lens in the eye that affects vision. Most cataracts are related to aging. Cataracts are very common in older people. By age 80, more than half of all Americans either have a cataract or have had cataract surgery. A cataract can occur in either or both eyes.
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Types of Eye Problems Cataract is a clouding of the lens, causing blurry or color-tinted vision. People with cataracts often report “haloes” surrounding objects that they are looking at, particularly at night. It is most common in older people, and cataracts can be removed by surgery that replaces the lens with an artificial lens.
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- Cataracts can form in any of three parts of the lens and are named by their location. 1  Nuclear cataracts. These form in the nucleus (the inner core) of the lens. 2  Cortical cataracts. These form in the cortex (the outer section of the lens). 3  Posterior subcapsular cataracts.
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- A subcapsular cataract occurs at the back of the lens. People with diabetes or those taking high doses of steroid medications have a greater risk of developing a subcapsular cataract. A nuclear cataract forms deep in the central zone (nucleus) of the lens. Nuclear cataracts usually are associated with aging.
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Cataracts And Cataract Surgery: Q&A Cataracts also can occur as a result of other eye diseases and conditions, such as uveitis. Although you can't necessarily prevent all of these conditions, some are avoidable and could potentially lower your risk of cataract development at an earlier age.
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Cataracts in Children, Congenital and Acquired Disease Entity. A cataract is any light scattering opacity of the lens. It is estimated that congenital cataracts are responsible for 5% to 20% of blindness in children worldwide. Incidence varies from country to country.
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Eye health guide Painless and progressive, cataracts slowly cloud the lens. The first symptom of cataracts is often decreased night vision. The light distortion caused by cataracts also frequently produces halos around lights -- again, mostly at night. Blurry vision is also common.
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Are There Different Types of Cataracts? Nuclear Sclerotic Cataracts. This is the most common type of age-related cataract, caused primarily by the hardening and yellowing of the lens over time. Nuclear refers to the gradual clouding of the central portion of the lens, called the nucleus; sclerotic refers to the hardening, or sclerosis, of the lens nucleus.
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Malawi Malawi has a low life expectancy and high infant mortality. There is a high prevalence of HIV/AIDS, which is a drain on the labour force and government expenditures. There is a diverse population of native peoples, Asians and Europeans, with several languages spoken and an array of religious beliefs.alawi has a low life expectancy and high infant mortality. There is a high prevalence of HIV/AIDS, which is a drain on the labour force and government expenditures. There is a diverse population of native peoples, Asians and Europeans, with several languages spoken and an array of religious beliefs.
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Cataracts Rarely, cataracts can present at birth or in early childhood as a result of hereditary enzyme defects, and severe trauma to the eye, eye surgery, or intraocular inflammation can also cause cataracts to occur earlier in life.
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Top 40 Doctor insights on: Cortical Cataract Symptoms Cataract types: A cataract is a clouding of the natural lens of the eye. Most people will develop a diffuse clouding of the lens with age. This is referred to as a nuclear sclerotic cataract, or a senile cataract. It develops slowly after age 50-60, and may never have to be removed. A cortical cataract is a clouding usually on the front of the lens and may cause signficant glare.
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Cataract & Lens Options Cataract types include: Cataracts that affect the center of the lens (nuclear cataracts). A nuclear cataract may at first cause you to become more nearsighted or even experience a temporary improvement in your reading vision. But with time, the lens gradually turns more densely yellow and further clouds your vision.ataract types include: Cataracts that affect the center of the lens (nuclear cataracts). A nuclear cataract may at first cause you to become more nearsighted or even experience a temporary improvement in your reading vision. But with time, the lens gradually turns more densely yellow and further clouds your vision.