The whole ball, not just from the eyelid apertures. For instance, in 1/4th scale the whole eyeball sould be...? And in 1/6th, and 1/8th?
For replacing eyes in a kit, or doing a sculpt. Find a round bead or some such, put it in the socket, then add the eyelids over that.
For replacing eyes in a kit, or doing a sculpt. Find a round bead or some such, put it in the socket, then add the eyelids over that.