Mission Hill, South Dakota - Demographics. 1  As of the census [3] of 2010, there were 177 people, 69 households, and 51 families residing in the town.
A: Tremendously. In the early days of cataract surgery, the only thing that surgeons could do was remove the cloudy lens. Without a lens inside their eye, patients had to wear very thick âCoke bottleâ glasses to see.The most important change has been the development and improvement of artificial replacement lenses.: Tremendously. In the early days of cataract surgery, the only thing that surgeons could do was remove the cloudy lens. Without a lens inside their eye, patients had to wear very thick âCoke bottleâ glasses to see.
The sailboats that Ancient Egyptian â¦ s used could not carry them over the cataracts. Instead, the boat would have to be dragged up the cataract by teams of men, often with great difficulty. Since the first cataract is by Aswan, in the beginning of the Cushite/Nubian territory, this prevented the Cushites from invading Egypt using a river-navy since such a thing would not pass over the cataracts.