"This can burn your retina out"<br><br>Sticks hand directly into laser,(reply>), Jim Stanley At intensities much greater than that of the laser Tom stuck his hand in front of. They cranked it up at the end and Tom could feel the heat just standing next to it. It burned the wall it was pointed it at by the look of it. <i>That</i> intensity could’ve damaged his retina even after subsurface scattering.,(reply>), @Erwin Pommel straight facts,(reply>), @Erwin Pommel Now that's a damn scientific statement if I've ever heard one,(reply>), @Erwin Pommel class 4 laser can burn your retina reflecting from a diffuse object.,(reply>), Your retina isn't in your hand.