Gwendolyn Lynch, DVM, DACVO
Pertinent ophthalmic anatomy for veterinarians in private practice is reviewed from the outside in, as are related diagnostic tests and pertinent diseases. In order, the orbit, eyelids, third eyelid, tear film, nasolacrimal drainage system, cornea and sclera, lens, uveal tract (iris, ciliary body, choroid), iridocorneal angle and aqueous dynamics, vitreous, retina, optic nerve, and visual cortex are reviewed.
True ophthalmic emergencies commonly seen in small animal practice include acute primary glaucoma, anterior lens luxation, traumatic globe proptosis, and progressive deep corneal ulceration. It is important that the general practitioner be able to recognize these sorts of emergencies.
Corneal surgical techniques available for use in veterinary medicine are reviewed. Surgeries discussed include linear grid keratotomy, multiple superficial punctate keratotomy, diamond burr superficial keratectomy, thermokeratoplasty, keratectomy, conjunctival graft placement (pedicle, island, bridge, advancement, etc.), corneoconjunctival transposition flaps, penetrating and lamellar keratoplasties (corneal transplants), biosynthetic graft placement (A-cell, BioSist), and amnion graft placement.
A review of how to treat acute primary glaucoma, a luxated lens, globe proptosis, corneal laceration, and deep/progressive ulceration.
A review of the basic anatomy of the eye in dogs and cats.
It is important to recognize qualities that affect candidacy for cataract surgery in our small animal patients.