Eye Cataracts

A cataract is an obstruction that happens in the lens of the eye. It could be slight cataract or it could be complete opacity. It blocks the passage of light. If it is age related cataract, then the lens power could be increased causing myopia or near sightedness. There is also slow yellowing and a little lens opacification reducing the perception towards blue colours. The condition of eye cataract graduates from loss of vision. People can become blind if left untreated. 

Senile cataracts of the eye occur mostly in the elderly. It is primarily seen with an initial lens opacity. This is followed by the swelling of the lens. The lens shrinks and there is transparency loss. It has been seen that time liquefies the cataract cortex and forms a milky white fluid. This is called a MOragagnian cataract. This causes serious swelling if the lens breaks and leak. If left untreated, then it causes a condition called phacomorphic glaucoma. In really weak cataracts, the zonules are weak. These are also liable to getting dislocated posteriorly or anteriorly. This kind of posterior dislocations occurring spontaneously is actually a blessing from heaven. This is similar to the ancient surgical procedure known as couching. The perception of light was brought back in the patients who have cataract.

Cataract comes from the Latin cataract. This means waterfall. The word is also derived from the Greek word kataraktes and katarrhaktes. It is also derived from katarassein. This means to dash down. Kata means down and Arassein  means to strike, dash. Similar to water running fast that turns while, the term later is used as a metaphor. This is used to explain the similar look of ocular opacities which are mature.  In Latin cataract had the other meaning “portucullis”. Thus, it is probable that the name arrived due to the sense of obstruction. It was called by the Persian physicians as the nazul-i-ah.

It has been seen that age related eye cataracts are causing forty eight percent of the blindness in the world. This blindness represents eighteen million people. This is as per the World Health Organisation or the WHO. In a lot of countries, surgical services are not adequate. Cataracts of the eye are the leading blindness causes. The number of cataracts of the eye  is growing. This is also a reason why vision is low in both developing and developed countries . Low vision is normally related to cataracts and it could still be present.http://www.biblehealth.com/cataracts/cataracts-of-the-eye.html