Sunday, 31 August 2014

Cateracts- Symptoms, Causes ..

1 What is  cataract?

Cataract is a clouding of the lens inside the eye  that affects vision. it's the foremost common reason for visual impairment and might be treated with surgery. Visual loss happens due to some conditions of the lens that obstructs light-weight from passing and being targeted on the tissue layer at the rear of the attention.

Mostly cataracts are associated with aging. Cataracts are quite common in older peoples.

Those with cataracts usually expertise problem in appreciating colours and changes in distinction, driving, reading, recognizing faces, and handling glare from bright lights.

A cataract will occur in either or each eyes.

What is lens?

The lens may be a clear a part of the attention used for focussing light, or a picture, on the retina. The retina is that the photosensitive tissue at the back of the eye.

In a normal eye, light passes from the clear lens to the retina. Once it reaches the tissue layer, light is modified into nerve signals that are sent to the brain.

The lens should be clear for the tissue layer to receive an exect  image. If the lens is cloudy from a cataract, the image you see are blurred.

Are there alternative kinds of cataract?

Yes.there are 2 alternative kinds of cataract:

1 Secondary cataract

2 Traumatic cataract

3 innate cataract

4 Radiation cataract

What causes cataracts?

The lens lies behind the iris and the pupil. It works very similar to a optical lens. It focuses light-weight onto the tissue layer at the rear of the attention, wherever an image is recorded. The lens also adjusts the eye's focus, letting us see things clearly both up close and far away. The lens is made of mostly water and protein. The protein is arranged in a precise way that keeps the lens clear and lets light pass through it.

When are you possibly to possess a cataract?

Cateract in the main happens in older ages, individuals will have cataract in their ages of 40s and 50s. however throughout time of life, most cataracts ar tiny and don't have an effect on vision. it's when age sixty that almost all cataracts steal vision.

What are the symptoms of cataract?

1 Cloudy or muzzy vision.
2 Colours appear pale.
3 Glare, Headlights, lamps, or daylight might seem too bright.
4 Poor twilight vision.
5 visual impairment or multiple pictures in one eye. (This symptom might clear once the cataract gets larger.)
6 Frequent changes in your eyeglasses or contact lenses.

These symptoms can also be a symptom of alternative eye issues. If you've got any of those symptoms, better to consult an opthalmologist

How may be a cataract treated?

The symptoms of early cataract are often improved with new eyeglasses, brighter lighting, anti-glare shades, or magnifying lenses. If these measures don't facilitate, surgery is that the solely effective treatment. Surgery involves removing the cloudy lens and exchange it with a synthetic lens.

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