Cataract surgery involves removing the natural lens of the eye and replacing it with an artificial lens (intraocular lens implant or IOL). The plastic artificial lens is permanent, requires no care, and can significantly improve vision.ataract surgery is indicated when the cataract impairs vision to the extent that it interferes with normal daily activities. Cataract extraction is one of the most frequently performed surgical procedures in the world. A cataract is a cloudy or opaque area in the normally clear lens of the eye.
There are 640 acres in a square mile -- there is no such thing as a square acre. And just in case you are interested, 43560 square feet in an acre. idiot detector Â· 1 decade ago
How many square miles in 1 acre? The answer is 0.0015625. We assume you are converting between square mile and acre. You can view more details on each measurement unit: square miles or acre The SI derived unit for area is the square meter. 1 square meter is equal to 3.8610215854245E-7 square miles, or 0.00024710538146717 acre. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between square miles and acres. Type in your own numbers in the form to convert the units!