My lucid dreams are generally pretty fuzzy too, but yes, that's what they say.

Another technique that's mentioned a lot is to stare at your hands, and try to see all the little details in them. After a couple of seconds they should become clearer, and with them, the rest of the dream. It also helps to try too see details as much as you can in real life as well, and they should begin to show up more in your dreams.