Clinical books show the orbit (the hole). Zarins shows the "eye sock" – the padded, fatty ring that sits around the eyeball. In the verified PDF, the overlay on page 98 demonstrates that the lower eyelid has a distinct plane that rises to meet the cheek (the malar septum). Sculpting a baggy eye requires this plane; otherwise, you get a zombie.
If you cannot afford the book, check your local art school or public library. Many subscribe to digital lending services (like Hoopla or Libby) where you can borrow the verified digital edition legally for free. anatomy for sculptors form of the head and neck pdf verified