Your eyeballs are being bombarded with photons emitted by the sun and your monitor right now as we speak. Furthermore, you're perpetually bathed in cosmic backg

Your eyeballs are being bombarded with photons emitted by the sun and your monitor right now as we speak. Furthermore, you're perpetually bathed in cosmic background radiation. A "laser" just means that the emitted photons are phase synchronized, but says nothing about the intensity. The range is also irrelevant. For a radially emitting source, intensity scales as the inverse squared distance, but assuming you control the output, it's a moot point.