Like Dana said the more you do it the more clear the print will become. I started out doing photofocus cross-eyed and it started out blurry and after a few week became clear. Then I decided to try photofocus parallel-eyed (divergant eyes) it also started out blurry. But after doing many stereograms and photoreading sessions say about a week, the text became just as clear as with the cross-eyed way, and it is easier on my eyes now .

-Will