Anatomy The rectangular-shaped lacrimal bones are approximately the size of a small fingernail. Forming part of the eye socket, they have four borders and two surfaces, nasal and orbital.

The lacrimal bone is perhaps the most fragile bone of the face and one of the smallest bones in the body. Spanning between the middle of each eye socket, each lacrimal is thin and scalelike and ...

(a) The frontal processes of the maxilla and the lacrimal bone are removed to expose the nasolacrimal duct and the lacrimal sac. (b) The mucous nasolacrimal duct and the lacrimal sac are elevated ...