Key points from article :
Scientists have used Crispr-Cas9 inside a person’s body for the first time.
Operated on DNA using this gene-editing tool to treat an inherited form of blindness.
Edited the mutation by making two cuts on either side of it and allowing the ends to reconnect.
The editing of gene should hold for the lifetime since cells in the retina do not divide.
Have to wait for a month to see if the procedure yields expected results.
If successful people suffering from Leber congenital amaurosis would be able to see the world again.
