Possibly pregnant and getting glaucoma workup with eye drops..dangerous for baby?

My hubby and I have been trying for a second baby and little did I know, I might have eye issues and so have been referred to get "Glaucoma work up" at a local opthamologist. I don't know about this procedure but I do know eye drops are used before the various tests. We don't know if I am pregnant yet but I would like to know, will the eye drops affect a possibly implanted egg/fetus? I truly hope not and am a little worried. I'd like to of course start off my pregnancy as healthy as possible and thats why I am concerned. I don't want to use any medications and whatnot, but obviously glaucoma can be serious and so I need to go to this apointment and cannot put it off. Please,if any of you are registered RN's /doctors/ or women/men with knowledge about this, let me know what you think so I can set my mind at ease a bit. thank you so much.