blindness. >> reporter: potentially making this the decade when millions will finally see like this. andrea canning, abc news, new york. >> using the collagen they eliminate the need for cornea donors which they say were always in short supply. this could be huge for a lot of people. >> it certainly could be. in sweden when they tested this out, they're saying they took ten patients in one eye, after two years no one had any problems. it could be a huge advancement for about 5 million americans who have this problem. coming up, meathead from "all in the family" has gone very far in hollywood to say the least. >> now director rob reiner has plenty to say about his new film. that's n