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What does the word cataract mean in Egypt?
The word cataract comes from the Greek word Katarakhtes meaning “waterfall”. In ancient times, Upper Egypt extended from the Nile Delta to the first cataract. Further upstream, in what is modern Sudan, the land was later controlled by the Kingdom of Kush.
What is the meaning for cataract?
(KA-tuh-RAKT) A condition in which the lens of the eye becomes cloudy. Symptoms include blurred, cloudy, or double vision; sensitivity to light; and difficulty seeing at night. Without treatment, cataracts can cause blindness.
What is an ancient cataract?
In antiquity, as early as the 5th century, the first form of a cataract operation was performed, known as couching. This method consisted of dislocating the cataract lens, moving it away from the pupil, and letting it sit in the vitreous cavity towards the rear of the eye.
What were the cataracts used for in ancient Egypt?
River cataracts often go with a rapid down-drop of the river. They block the waterway, since boats cannot safely carry cargo though. The six first cataracts of the River Nile were the main obstacles for boats sailing on the Nile in antiquity.
What is called Motiyabind?
/motiyābinda/ mn. cataract countable noun. A cataract is a layer that has grown over a person’s eye that prevents them from seeing properly.
When did cataracts start?
The first true cataract extraction was performed in 1747, in Paris, by the French surgeon Jacques Daviel. His procedure was more effective than couching, with an overall success rate of 50%.
What does cataract mean waterfall?
cataract, a waterfall (q.v.), especially one containing great volumes of water rushing over a precipice.
What is a cataract waterfall?
How did cataracts help Egypt?
The cataracts were river rapids. This shows that lands south of Egypt would have to travel by water to reach the civilization.This influenced life in the region because it protected the Egyptians, allowing them to create more inventions and expand their growing civilization.
What is Egyptian cataract?
The cataracts are sections where the river tumbles over rocks and have long kept boats from going up and down the river from Equatorial Africa to Egypt.
What is the definition of cataract in ancient Egypt?
The word cataract comes from the Greek word kataraktes meaning “waterfall”. In ancient times, Upper Egypt extended from the Nile Delta to the first cataract. Further upstream, in what is modern Sudan , the land was later controlled by the Kingdom of Kush .