If you have had recent problems with your eyesight then this may cause this. If you are prescribed glasses and you do not wear them then I suggest you start wearing them. If not, I suggest you see an optician and book another eye test. The eyes are probably recovering from a deep sleep which will cause you to feel dizzy, still tired, or your eyes will see funny colours.
Hi are you by any chance taking any kind of medications and which ones?
If it was a one time thing it probably isn't anything but I don't know for sure. I would got to the eye care forum and ask the doctors there. They are opthamologists.