Eye doctor ADVICE PLS :)

I went to Motor Vehicle today and failed my eye exam so I have to go to my Eye Dr tomorow and Ive actually never been to the Eye Dr, (I know I know Im 19-parents never took me to many drs that I shouldve seen) but Im a little nervous I know I need glasses but is it ok to wear makeup around my eyes or no, and is there anything I should know about it? Advice please. Thanks!