The American Academy of Ophthalmology warns those cheap contact lenses you -- give yourself can eyes are black down eyes could be very dangerous. We talked to doctor Stephen Nichols the Kansas City I clinic who -- you risk your -- if your contacts don't fit properly. It's -- all servers -- infections. Allergic reactions and even mechanical damage to act so. And the damage could happen immediately doctor Nichols says one night of fun is it worth risking your future eyesight. The custom lenses are also illegal banned by the FDA back in 2005. -- marks -- -- BC news.