Start from the front of the face where you first.
snip the upper eyelid upwards and dissect through the skin into the
orbit following a couse that allows you to see the fibers of levator
palpebrae superioris muscle. Leave the upper eyelid intact, but carefully
remove the lower eyelid.
Dissect through the orbital septum below the upper eyelid
and around the margins of the eye. At the bottom of the orbit
expose the inferior oblique muscle and inferior rectus muscle.
In the upper lateral corner just inside the orbit you can
expose the lacrimal gland as seen in this dissection.
From this anterior approach you should be able to identify all of
the extraocular muscles and the region of the
trochlea. Medially you may be able to identify components of the
lacrimal sac as it disappears into the lacrimal canal just behind the
anterior lacrimal crest (part of the maxilla). The lacrimal sac
will be located immediately anterior to the posterior lacrimal crest
(part of the lacrimal bone)
which is located medially and inferiorly just inside the orbit.
