There is no conflict between the earings and the eyeglasses. If you choose the big frame black eyeglasses which are the most fashionable eyeglasses nowdays, you could wear the outstanding earrings which should be better the big ones. If you wear the common eyeglasses, the shining ear stud may be your suitable ones which could improve your complexion.
In fact, there is much relationship for choosing wearings when you wear glasses. Anyway, match them properly can make you look more beautiful. In details, If you wear a pair of small and dedicated eyeglasses, you can choose some small and dedicated earrings. But if you wear common eyeglasses or big eyeglasses, you can also choose big or long earrings to flatter you. Anyway, just try on yourself. Good luck.
Basically, the material of glasses frame and earrings should be matched or similar. For example, if the frame is made of metal, you can select sliver earrings to match the glasses. You should pay attention to the shape as well. You had better not select the same shape for both glasses and earrings. For instance, if you are wearing a pair of round-framed glasses, you should not wear round-shaped earrings. Otherwise, it would make your face present rounder. Additionally, the style of glasses and earrings should be matched or similar as well. It is a good way to show your quality. The most suitable way is wearing small and light-colored earring clips, which could match all types of glasses in all situations.