Anyone familiar with laser devices?

My 2 year old grabbed a hold of my laser measuring device while I was on the phone at the computer. Maybe 5 seconds later I turn around and he's got the laser end pointed into his eye. Freaked out and yanked it away from him.

Don't know how long he is looked at it that way, but could not be more than 5 seconds.

The laser has all sorts of warnings on it not to stare at it. It has a 2 on it, so I think it may be class 2? It is a pretty serious device by Hilti, not some laser pointer or something.

Yes, I am stoopid for letting him grab it and use it unobserved.

Do I need to go to the eye doctor and have it checked out? My fear, of course, is that I have screwed up his eyes in some way.

Help.