When your eyebrows and glasses are in alignment, your glasses look the most natural on your face. This will allow your features to be showcased in the best light.
Full and thick eyebrows shouldn’t be overshadowed by big glasses, so a thin frame works best. Conversely, thin eyebrows benefit from thick-framed glasses.
Make sure your eyeglasses are not blocking the view of your eyebrows. As a rule of thumb, at least half of your brows should sit above the glasses' top rim.