Is there a real Not A Joke Or Prank retinal eye scanner lock for android?

I have a LG Marquee with a front facing camera (and one on the other side) and i was wondering if there is a real again, Not A Joke Or Prank, an actual Biometric Retinal Scanner app for android phones with a front facing camera and if there was what is the name of the app and where can i get it?
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