IBM was working on this in the early 90s[1], and had working demos in the late 90s/early 2000s. I'm pretty sure we would have heard about health risks by now

[1]: https://patents.google.com/patent/EP0562742A1/

Yeah I saw the main image of a green laser being projected into the eye and thought "nah, I'm good."

That's the first thing i have searched the current blue screen have already caused enough damage to eyes. but ig it's still in early prototype and i would be appreciated if they provided the affects that it might causes to eyes.

Light being from a laser does not automatically make it more dangerous. You can even shine a regular class IIIa laser pointer, with warning label still intact, directly into your eye and you'll blink long before it will do any damage.

The issue is intensity of light. These retinal projector lasers are not intense enough to damage your eye. A regular light at the same intensity as a powerful laser would damage your eyes just as much. It's just a lot harder to create a regular light that can reach that level of intensity.