Whether you use your glasses or not is a decision you need to make for yourself. Personally, I believe that the other than conscious is still able to absorb the information easily. However, if you're feeling worried, you might want to wear your glasses whilst photoreading. One note I'd make on this is that the photofocus tends to be a little more difficult to attain with your glasses on. I do it both with and without my glasses. If I'm having particular trouble attaining photofocus, then I remove them. I don't think you need to worry about additional blurriness.
Hope this helps.
KWLee
