eyes and ears ETO NA

Redness, discharge in one eye, mild sneezing, conjunctival hyperemia, chemosis, and seromucoid discharge in a cat.

Chlamydophila felis-associated conjunctivitis

Corneal opacity, edema, during recovery from CAV-1 infection in dogs.

Infectious Canine Hepatitis

Pigmented plaques, vascularization, and corneal ulceration in cats, cause unknown.

Feline Chronic Ulcerative Keratitis

Highly contagious keratitis, corneal opacity and ulceration in cattle caused by Moraxella bovis.

Infectious Keratoconjunctivitis of Cattle (Bovine Pink Eye)

Conjunctivitis with mucopurulent discharge, corneal neovascularization in goats.

Keratoconjunctivitis in Goats

Diffuse corneal edema, serous ocular discharge in sheep.

Keratoconjunctivitis in Sheep

Corneal ulceration, opacity, and vascularization in cattle and other species due to trauma or infection.

Corneal Ulceration

Granulation tissue and pigment deposition in cornea, esp. German Shepherds.

Chronic Superficial Keratitis (Pannus)

Brown corneal pigmentation commonly in pugs.

Pigmentary Keratitis

Fatty substance deposits in the cornea in adult dogs, linked to thyroid disease.

Corneal Lipidosis

Calcification of cornea due to hypercalcemia from hyperparathyroidism or vit D toxicity.

Band Keratopathy

Inherited progressive bilateral corneal clouding in dogs and cats.

Corneal Dystrophies

Dry eye syndrome due to inadequate tear production, especially in dogs.

Keratoconjunctivitis Sicca

Granuloma in retina around dead larva in dogs.

Larval Granulomatosis of Retina and Choroid

Diffuse chorioretinitis, subretinal exudate in dogs with pigmented fundus lesions.

Blastomycosis

Retinal detachment and yellow vitreous inflammation in German Shepherd dogs.

Aspergillosis

Chorioretinitis and optic neuritis in dogs with dark retinal foci.

Cryptococcosis

Hypopyon and anterior uveitis in cats with bilateral white-gray opacity.

Feline Infectious Peritonitis

Iris depigmentation, deformed pupil, and blindness in chickens.

Marek’s Disease

Conjunctivitis with intense neovascularization and uveitis in cats.

Ocular Leishmaniasis

Anterior uveitis and glaucoma in dogs; white granulomas in tapetal fundus.

Coccidioidomycosis

Chorioretinitis with pigmented fundus lesions in dogs.

Histoplasmosis

Anterior uveitis and retinal lesions in cats; subretinal bleeding and detachment.

Toxoplasmosis

Chronic, bilateral blindness in sheep associated with bracken fern ingestion.

Toxic Retinal Degeneration (Bright Blindness)

Progressive retinal degeneration in cats fed taurine-deficient diets.

Nutritional Retinal Degeneration

Retinal hemorrhages and neovascularization in diabetic dogs.

Diabetic Retinal Degeneration

Vitreous hemorrhage and retinal edema after exposure to strong light.

Retinal Degeneration by Visible Light

Retinal detachment in hypertensive cats; appears as veil behind pupil.

Retinal Detachment

Swollen optic disc, indistinct margins, increased intracranial pressure.

Papilledema

Optic nerve head inflammation with fuzzy margins, indistinct vessels.

Optic Neuritis

Complete absence of the globe.

Anophthalmia

Partial fusion of two eyes into one structure in a calf.

Synophthalmia

Abnormally small globe, commonly in dogs and pigs.

Microphthalmia

Congenital absence of iris or cleft in iris.

Iris Coloboma

Thin-walled cysts in anterior chamber of dogs' eyes, esp. Golden Retrievers.

Uveal Cysts (Pigmentary Uveitis)

Recurrent iridocyclitis in horses; common cause of blindness.

Equine Recurrent Uveitis

Mild or severe uveitis from lens rupture, commonly in rabbits.

Lens-Induced Uveitis

Anterior lens dislocation with inflammation in cats or dogs.

Lens Luxation

Progressive opacity of the lens, commonly heritable in dogs.

Cataract

Corneal edema and buphthalmia in both eyes of cats or dogs.

Primary Glaucoma

Shrunken, opaque cornea with atrophic eyeball after inflammation.

Phthisis Bulbi

Unilateral conjunctivitis in cats with no corneal ulcers, progressing to bilateral.

Chlamydophila felis-associated conjunctivitis

Inflammation of the eyelid margin with swelling and discharge.

Blepharitis

Painful red bump on the eyelid due to Staphylococcus infection.

Hordeolum (Stye)

Benign nodular swelling in episclera, especially in dogs.

Episcleritis

Inflamed lacrimal gland due to infection or secondary disease.

Dacryoadenitis

Acute, suppurative inflammation of orbit often from tooth or sinus infection.

Orbital Cellulitis

Neoplasm from meibomian glands, often erupting through eyelid in dogs.

Sebaceous Gland Neoplasm

Malignant, pink or white mass near limbus, common in cattle and horses.

Squamous Cell Carcinoma of the Eye

Pigmented mass near limbus in dogs; low metastatic rate.

Epibulbar Melanoma

Pigmented intraocular tumor in iris or ciliary body of dogs and cats.

Uveal Melanoma

Hair inversion causing corneal irritation.

Trichiasis

Inward turning of the eyelid causing irritation and conjunctivitis.

Entropion

Everted eyelid margin, leading to dryness and irritation.

Ectropion

Absence of pinna, seen in inherited sheep defect.

Anotia

Blood-filled swelling in ear pinna due to trauma or fracture.

Auricular Hematoma

Hair loss on pinnae without inflammation in breeds like Dachshunds.

Idiopathic Pinnal Alopecia

Crusting, ulceration, and redness on ears of white cats from sun exposure.

Feline Solar Dermatitis

Papillomavirus-caused plaques in horse ears, rough and scaly.

Equine Aural Plaques

Mite or tick infestation in external ear, with ceruminous debris and crusting.

Parasitic Otitis Externa

Fungal infection of the external ear with discharge and hyphae.

Mycotic Otitis Externa

Suppurative inflammation with Pseudomonas or Staph in ear canal.

Bacterial Otitis Externa

Otitis media extension with inflamed tympanic membrane.

Myringitis

Polypoid mass in middle ear cavity causing swelling or displacement.

Nasopharyngeal Polyp

Middle ear infection associated with guttural pouch empyema in horses.

Eustachitis

Congenital or acquired inflammation of the cochlea and vestibule.

Otitis Interna

Hearing loss due to inner ear hair cell degeneration in albino cats.

Albinotic Deafness