Ophthalmology
Table of Contents
Section 1 General Anatomy and Physiology of the Horse
Eye
Introduction
Some helpful hints
Anatomy
Orbit
Eyelids
Nictitans
Conjunctiva
Anterior Segment
Precorneal Tear Film
Cornea, Limbus, Sclera
Iridocorneal Angle
Uvea
Iris
Pupil
Ciliary Body
Choroid
Lens
Posterior Segment
Vitreous Chamber
Retina
Optic Nerve
Section 2 Examination of the Eye of the Horse
History
Ophthalmic Examination
Reflex Testing
Diagnostic Testing
Visual Capabilities of the Horse
Ocular Problems in the Foal
Section 3 The Equine Orbit
Orbital Diagnostic Techniques
Orbital Trauma, Contusion, and Periorbital Fractures
Foreign Bodies can lead to Orbital Abscesses
Orbital Tumors
Suture Line Periostitis
Treatment of Equine Orbital Disease
Section 4 Eyelids, Conjunctiva, Nictitans,
and Nasolacrima System
Traumatic Eyelid Lacerations
Neoplasia of the Lids
Sarcoids
Squamous Cell Carcinoma
The Conjunctiva
The Nictitans
The Nasolacrimal System
Keratoconjunctivitis Sicca
Dacryocystitis
Section 5 Corneal Ulceration
Proteinases in the Tear Film
Corneal Sensitivity in Foals and Adult Horses
Corneal Healing
The Equine Corneal Microenvironment
Medical Therapy
Antibiotics
Collagenolysis Prevention
Treat Uveitis
Adjunctive Surgical Therapy
Bandage Soft Contact Lens
Debridement, Keratectomy, and Keratotomy
Conjunctival Grafts
Amniotic Membrane Grafts
Third-Eyelid Flaps
Temporary Tarsorrhaphy
Enucleation
Inappropriate Therapy and Ulcers
Corneal Lacerations/Perforations
Fungal Ulcers
Iris Prolapse
Corneal Stromal Abscesses
Posterior Lamellar and Penetrating Keratoplasty
for Deep Corneal Stromal Abscesses
Section 6 Other Corneal Problems
Squamous Cell Carcinoma and Other Corneal Tumors
Corneal Foreign Bodies
Endothelial Detachment Following Blunt Trauma
Nonulcerative Keratouveitis
Nonulcerative Interstitial Keratitis
Eosinophilic Keratoconjunctivitis
Herpes Keratitis
Burdock Pappus Bristle Keratopathy
Calcific Band Keratopathy
Section 7 Cataracts, Glaucoma, and Uveal Tract Disease
Cataracts
Equine Cataract Surgery
Extracapsular Cataract Surgery
Phacoemulsification Cataract Surgery
Intracapsular Cataract Surgery
Postoperative Cataract Surgery Therapy and Results
Aphakic Vision in Horses
Equine Glaucomas
Contraindications/Possible Interactions
The Uveal Tract
Heterochromia Iridis
Aniridia/Iris Hypoplasia/Enlarged Corpora Nigra/Iris Colobomas
Iris and Ciliary Body Cysts
Equine Recurrent Uveitis (Periodic Ophthalmia,
Moon Blindness, Iridocyclitis)
ERU Therapy
Alternative Therapy for ERU
Homeopathic remedies
Surgical Considerations for ERU
