Cracked phone screen messing with pictures?

My iphone screen is shattered at the top and there's is no glass covering my camera. I've noticed that the pictures i take are less quality and in assuming it's because of the missing glass. Is there anything i can put over the lense that could help with this?

You can buy new phone screens from eBay

Get it repaired or a new phone, you by your own can't do anything. I don't know what you did that it cracked this way, but you're not gentle with your phone, that's for sure.