Ten million men in the U.S. are color blind they can’t see red from green but less than 60000 American women have the same disability. That’s because this mutation is located on the hole part of their eye It is well known that people who are colorblind have mutations in their parents or there DNA that cause a loss of either red or green cones, and they therefore have a hard time distinguishing between colors. There are three kinds of cones in the human eye: red or green or blue. Adaptive optics won’t be in the doctor’s office tomorrow. The imaging machine is so large that it takes up an entire room and one component costs 150,000 dollars But, says Carroll, five new machines are now being built that are smaller and cheaper. That will make people that are color blind can see color for the first time or again but it will cost a lot to build 150000 is a lot money.