This is something I thought of when reading the Lucid Dreaming wiki. It mentioned that people who have slightly blurry vision can use that as an RC as vision in dreams is usually perfect.
I was wondering if you could soft focus your eyes to achieve the same effect. I don’t mean tensing your eyes… It’s more like relaxing the muscles in your eyes and everything becomes blurry.
If you can’t do it you can achieve the effect by looking at some object a long distance away, closing your eyes. Then moving your head so you would be looking at something much closer. Then when you open your eyes there should be a brief moment where the object you are looking at is all blurry. Or maybe by looking at something a distance away and then drawing your attention to something much closer.