I've read several conflicting studies about the effects night lights have on young children's eyes before the age of two. The original study claims that night lights cause myopia. I felt better when I read 2 studies that disproved this. However, today a friend told me there was another recent study in November 2003 that says night lights are indeed a cause of myopia. What is correct? Where can I read about this study in 11/03? I used a night light for my 2 year old since birth. Now I'm concerned!