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Cataracts

Cataracts along with refractive errors are the leading cause of avoidable blindness worldwide and although not preventable, cataracts are treatable. The condition is a natural result of aging and is much more common in older people, although rare types of cataracts do affect babies and young children.

What Are Cataracts?

Inside our eye we have a natural lens, which lens helps to bend the light entering inside and thus enabling us to see. The lens is mostly made up of water and protein. As we age this protein can clump together and cover a small area of the lens, which grows large over time. This is the Cataract which appears as a clouding of the lens and its effect can be compared to looking through a foggy or dusty window.

Most age-related Cataracts develop gradually and you might only notice a change in your vision later.

 

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Some Of The Vision Changes With Cataracts Include:
  • Blurry vision
  • Double vision
  • Sensitivity to light
  • Decrease vision during night time
  • Seeing colors faded or with a yellow tinge
  • More glare while driving at night
  • Other Factors That Can Cause Cataracts: 
  • UV light from the sun
  • Diabetes
  • Hypertension
  • Obesity
  • Smoking
  • Prolonged use of corticosteroid medication
  • Previous eye injury
  • Previous eye surgery
  • High Myopia (shortsightedness)
Treatment Of Cataracts

When you cannot achieve clear vision with spectacles any more, then the only option to treat Cataracts is through surgery. In many cases, cataracts are present but surgery is not necessary as good quality vision is still achieved. Once the Cataracts affect your quality of life, then together with your eye care professional you will determine if surgery is the best way forward. Delaying the procedure won’t affect how well your vision recovers. Your eye doctor will recommend a periodic follow-up exam to assess if the Cataract has progressed.

Cataract surgery involves removing the clouded lens and replacing it with a clear artificial lens. The artificial lens, called an intraocular lens, is positioned in the same place as your natural lens and it remains a permanent part of your eye.

For more details about Cataracts or its treatment, kindly refer to our frequently asked questions on Cataracts.

Different types of cataracts affect different parts of the lens. They are:
  • Nuclear Cataracts: This Cataract forms in the center of the lens (the nucleus) and is a result of aging. The lens gradually turns yellow and causes a clouding of the vision.
  • Cortical Cataracts: They are characterized by white, wedge-like opacities in the periphery of the lens and work their way to the center in a spoke-like fashion.
  • Sub Capsular Cataracts: Sub Capsular Cataracts start at the back of the lens, this often interferes with your reading vision, reduces vision in bright light, causes glare and halos at night.
  • Congenital Cataracts: These Cataracts are present at birth and can be caused by inherited tendencies, infection, metabolic problems, diabetes, trauma, inflammation and drug reactions.
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