Cataract is a clouding of the eye’s natural lens, which lies behind the iris and the pupil.
Cataracts are the most cause of vision loss in people over age 40 and is the principal cause of blindness in the world. There are more cases of cataracts worldwide than there are of glaucoma, macular degeneration and diabetic retinopathy put together.
Types of cataracts include:
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 in Ireland.
Nuclear cataract forms deep in the central zone known as the nucleus of the lens. Nuclear cataracts usually are associated with aging.
Cortical cataract is white, wedge-like opacities that start in the periphery of the lens and work their way to the center in a spoke-like fashion. This occurs in the lens cortex, which is the part of the lens that surrounds the central nucleus.
Cataract Symptoms and Signs
Cataract start out small and at first has little effect on your vision. You may notice that your vision is blurred a little, like looking through a cloudy glass.
The type of cataract you have will affect which symptoms you experience and how soon they will occur. When a nuclear cataract first develops, it can bring about a temporary improvement in your near vision, called “second sight.”
This improved vision is short-lived and will disappear as the cataract worsens. On the other hand, a subcapsular cataract may not produce any symptoms until it’s well-developed.
What Causes Cataracts?
The lens inside the eye works like a camera lens, focusing light onto the retina for clear vision. It also adjusts the eye’s focus, letting us see things clearly both up close and far away, we will be able to notice the beauty of Kerry.
The lens is mostly made of water and protein. The protein is arranged in a precise way that keeps the lens clear and lets light pass through it.
But as we age, some of the protein may clump together and start to cloud a small area of the lens. This is a cataract, and over time, it may grow larger and cloud more of the lens, making it harder to see.
Cataract Prevention in Kerry
A number of studies suggest certain nutrients and nutritional supplements may reduce your risk of cataracts.
Antioxidant vitamins such as vitamin C and foods containing omega-3 fatty acids reduce cataract risk