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The eye uses a transparent lens over the pupil with which to focus etc. A cataract is where the lens becomes cloudy and opaque (not see-through). This leads to blurred vision and if left untreated, blindness.
From my A-level studies, I know that prolonged exposure to UV radiation increases the chances of developing a cataract- which is why sunglasses often have UVA/UVB ray filters in.
Cataracts can be spotted by opticians by modern methods and equipment. The cataract can be easily removed (my grandma has just had hers removed). A small cut is made in the eye (after anaesthetic etc!). The cataract is removed with a rod, while a new synthetic lens is placed into the eye. The operation takes around 30 mins and has extremely high success rates. See the NHS website for more details.
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Cataract blinds at least 120 million people globally every year What is its main cause?
Ultraviolet radiation
Is Victoria Falls a cataract?
The Falls are in sections known as the Devils Cataract, Main Falls, Rainbow Falls and the Eastern Cataract
What is a sentence for catarack?
Ozone deletion can cause cataract in humans. This is a sentence which contains the word cataract.
What are the early symptoms of Cataract?
Yes dizziness is a starting symptom of cataract because it comes with blur vision which result to dizziness.
What are the risks of UV?
UV can cause skin cancer. It could also cause eye cataract.
How do UV rays affect us?
UV rays can cause skin cancer. It can also cause eye cataract to humans.
What are some consequences from the ozone being destroyed?
Ozone destroyed can cause skin cancer. It can cause eye cataract too.
How is the problem caused in the Ozone layer?
Ozone depletion can cause skin cancer. It could also cause eye cataract.
What are thecauses of destruction of the ozone layer?
The ozone layer depletion is a very big cause of concern for the environmentalists. It is cause by the CFC reacting with the ozone to deplete it. The main causes of ozone depletion include skin cancer, eye cataract, suppression of immune system etc.
What are the consequences of the ozone being depleated?
The ozone depletion could cause skin cancer. It could also cause eye cataract.
What is the medical term meaning benign growth in the eye that can cause distortion in your vision?
Pterygium
How many different waterfalls make up Victoria falls?
Five different waterfalls make up Victoria falls horseshoe falls, rainbow falls, devil cataract, main falls and eastern cataract
