This should work with any style! Press space to see the next slide Step 1: draw the face Step 2: draw a line across the length of both eyes Step 3: draw the rest of the frames following the shape of the eyes (multiple examples shown) Step 4: draw some smaller lines on the frames, by the nose (these are those little bits that touch your nose and leave marks, multiple examples shown) Step 5: draw the bridge (multiple examples shown) Step 6: draw lines from the top line of the frames towards the edge of the face (only one example shown, it's pretty obvious how to do it)
I saw some friends of mine were struggling to draw glasses so I thought I'd share how I do it. Hope this helps!