once in a normal dream, i read some text on a paint can like, 5 times, and it was the same (still not convinced i was dreaming or not, i tried putting my finger through my hand and that didnt work either.) when i am dreaming and i am about to become lucid, its more of the "feeling" you are dreaming (this may not be the same for you)

I suppose that it depends on how powerful your mind is, or the strength of the lucid dream that determines weather or not you can read in your dreams.

btw peoples: soth is back for a while