what happened?? Black lines on red eyes nose?

[LilyPad]

That's a rub. Usually it's because they're attempting to escape and rub it on the screen. Make sure you don't have anything else with rough edges in there that could be scratching it up. That could be plastic plants or sharp edged bromeliads. Make sure your temps and humidity are correct too. It looks like it should heal up on its own so long as he doesn't re-rub it.