I Was Taking My Contacts Out Last Night, And Had

I was taking my contacts out last night, and had trouble finding the left one. When I pulled my lid back to look for it, I was this clear cyst looking mass in the corner of my eye. It's not huge, but now that I know it's there, I can feel it from the outside. I'm wondering what it might be. I plan to see someone about it Monday if at all possible.