From Wikipedia: "Studies have found that even low-power laser beams of not more than 5 mW can cause permanent retinal damage if gazed at for several seconds; however, the eye's blink reflex makes this highly unlikely. Such laser pointers have reportedly caused afterimage, flashblindness and glare, but not permanent damage, and are generally safe when used as intended."
So, it is highly unlikely that you will suffer any permanent damage--you would either blink or turn your head long before any real damage could occur. Red laser pointers are almost always of the low power type (5 mW or less). Green laser pointers, however, can be much stronger and are therefore more dangerous. You don't have to worry...
The person using the lazer pointer should be aware of it at all times and who's around them. If you say right away that it went in your eye they should relize the mistake say sorry and be more carefull.
Your eyes can take some short term damage and heal from it.
You should be fine it was probbly not for a prolonged period of time and really those lasers are pretty minor compared to some more powerful ones. If you're scared though your best bet would be to talk to an eye doctor they are more qualified to answer the question.