Showing posts with label Cataracts. Show all posts
Showing posts with label Cataracts. Show all posts

Saturday, 20 August 2011

Prevention Of Cataracts

It is unclear what causes cataracts, but doctors believe it may be able to reduce the risk of cataracts if you:

Have regular eye examinations. Eye examination can help detect cataracts and other eye problems in their early stages. Ask your doctor how often you should have an eye examination.

Quit smoking. Ask your doctor to help you stop smoking. Medications, counseling and other strategies are available to help.

Wear sunglasses. Ultraviolet light from the sun can contribute to the development of cataracts. Wear sunglasses that block B (UVB) when you're out.

Dealing with health problems. Follow your treatment plan if you have diabetes or other medical conditions that may increase the risk of cataracts.

Maintain a healthy weight. If your weight is healthy, work to maintain the exercise most days of the week. If you are overweight or obese, work to lose weight gradually reducing your calorie intake and increase the amount of exercise you do every day.

Choose a healthy diet that includes plenty of fruits and vegetables. Adding a colorful variety of fruits and vegetables to your diet guarantees a lot of vitamins and nutrients. Fruits and vegetables are full of antioxidants, which in theory could prevent damage to the eye's lens. Studies have shown that antioxidants in pill form can help prevent cataracts. But fruits and vegetables have many health benefits and are a sure way to increase the amount of vitamins in your diet.

Treatment Of Cataracts

The only effective treatment for cataracts is surgery.

When considering cataract surgery

Talk to your doctor about the eye surgery is right for you. Most ophthalmologists suggest considering cataract surgery when your cataracts begin to affect their quality of life or interfere with their ability to perform normal daily activities such as reading or driving at night.

It is up to you and your doctor decide when cataract surgery is right for you. Most of the people, there is no hurry to remove the cataract, because they usually do not damage the eye. Delaying the procedure does not make it more likely than not restore the view when you finally decide to have cataract surgery. Take time to consider the benefits and risks of cataract surgery with your doctor.

If you do not want to perform cataract surgeries are now, your doctor may recommend regular eye exams follow-up to see if the progress of cataract. How often do you see your ophthalmologist will depend on the situation.

What happens to the cataract surgery

Cataract surgery involves removing the clouded lens and replace it with a plastic lens implant. The lens replacement in the same place as the natural lens and becomes part of your eye.

For some people, other eye problems to ban replacement lens. In these situations, when the cataract is removed, vision can be corrected with glasses or contact lenses.

Surgery is usually done in one eye at a time, with several weeks between surgeries. It is usually performed on an outpatient basis, which means you will not have to stay in a hospital after surgery. During cataract surgery, your ophthalmologist uses a local anesthetic to numb the area around the eye, but you remain awake during the procedure. Cataract surgery is generally safe, but carries a risk of infection and bleeding. Cataract surgery increases the risk of retinal detachment.

Symptoms Of Cataracts

Signs and symptoms of cataracts include:

    Clouded, blurred or dim vision
    Increasing difficulty with vision at night
    Sensitivity to light and glare
    Seeing "halos" around lights
    Frequent changes in eyeglass or contact lens prescription
    Fading or yellowing of colors
    Double vision in a single eye

At first, the cloudiness in your vision caused by a cataract may affect only a small part of the eye's lens and you may be unaware of any vision loss. As the cataract grows larger, it clouds more of your lens and distorts the light passing through the lens. This may lead to signs and symptoms you're more likely to notice.

When to see a doctor
Make an appointment for an eye exam if you notice any changes in your vision. If you develop sudden vision changes, such as double vision or blurriness, see your doctor right away.

Causes Of Cataracts

Most cataracts develop after an injury, or aging changes in the tissue that forms the eye lens. Some cataracts due to an inherited disease that causes other health problems and increase the risk of cataracts.

How does one form of cataract

Lens-shaped cataract, is behind the colored part of the eye (IRIS). The lens focuses light passing through the eye, clear images of the retina - the light sensitive membrane at the back of the inner wall of the eyeball, which behaves like a film camera. A cataract scatters light passing through the lens, prevents sharp images reaching the retina. As a result, your vision is blurred.

As we age, the lenses in your eyes less flexible, less transparent and thicker. Age-related changes in the lens causes the tissue to break down and clump together, clouding small areas of the lens. As the cataract continues to develop the ambiguity becomes denser and involves a larger portion of the lens.

A cataract can develop in one or two of your eyes.

Types of cataracts

The types of cataract are:

Cataracts that affect the center of the lens (nuclear cataract). A nuclear cataract may initially make increasingly myopic, or even experience a temporary improvement in reading vision. But over time, the lens becomes more dense and yellow clouds their vision. Nuclear cataracts, sometimes you get to see double or multiple images. As the progression of cataract, the lens may even turn brown. Yellow or gold advanced from the lens can be difficult to distinguish between shades of color.

Cataracts, which affect the edges of the lens (cortical cataract). Cortical cataract begins to pale, wedge-shaped opacities or streaks on the outer edge of the lens cortex. How slowly progresses, the streaks extend to the center and interfere with light passing through the center of the lens. Problems with reflections are common to people with this type of cataract.

Cataracts, which affect the back of the lens (posterior subcapsular cataract). A posterior subcapsular cataract starts as a small opaque zone that normally forms near the rear of the lens, right in the path of light on its way to the retina. A subcapsular cataract often interferes with your reading vision, reduces your vision in bright lights and causes glare or halos at night.

Cataracts are you born with (congenital cataract). Some people are born with cataracts or develop them in childhood. Cataracts may be the result of the mother who contracted an infection during pregnancy. They may also be due to some inherited syndromes such as Alport syndrome, Fabry disease and galactosemia. Congenital cataracts, as they are called, is not always affect vision, but if they do they are usually removed soon after detection.

Cataracts Overview


A cataract is a clouding of the normally clear lens of your eye. For people who have cataracts, seeing through cloudy lenses is a bit like looking through a frosty or fogged-up window. Clouded vision caused by cataracts can make it more difficult to read, drive a car — especially at night — or see the expression on a friend's face.

Most cataracts develop slowly and don't disturb your eyesight early on. But with time, cataracts will eventually interfere with your vision.

At first, stronger lighting and eyeglasses can help you deal with cataracts. But if impaired vision interferes with your usual activities, you might need cataract surgery. Fortunately, cataract surgery is generally a safe, effective procedure.