Ulcerative Keratitis in Alpacas
- See your vet immediately. Ulcerative keratitis is a painful corneal ulcer, and deep ulcers can rupture the eye or cause permanent vision loss.
- Common signs include squinting, tearing, light sensitivity, a cloudy blue-white cornea, redness, and rubbing at the eye. Plant awns, hay, dust, trauma, and secondary bacterial or fungal infection are common triggers.
- Diagnosis usually involves a full eye exam and fluorescein stain to confirm an ulcer. Your vet may also check for uveitis, foreign material, tear film problems, and infection.
- Early cases may improve with frequent medicated eye drops, pain control, and protection from further trauma. Severe, melting, or infected ulcers may need referral, hospitalization, or surgery such as a conjunctival flap or temporary tarsorrhaphy.
What Is Ulcerative Keratitis in Alpacas?
Ulcerative keratitis means the clear front surface of the eye, called the cornea, has been damaged deeply enough to form an ulcer. In alpacas, this is an eye emergency because the cornea is very sensitive, ulcers are painful, and infection can spread quickly into deeper layers.
A superficial ulcer affects the outer corneal layer. A deeper ulcer extends into the stroma and carries a higher risk of scarring, rupture, or long-term vision loss. Camelids can also develop marked corneal swelling after injury, which can make the eye look blue, white, or hazy and can make the problem appear even more dramatic.
Ulcerative keratitis is often triggered by trauma first, then worsened by bacteria, fungi, inflammation inside the eye, or delayed treatment. In one published alpaca herd report, conjunctival plant foreign bodies were linked to conjunctivitis and ulcerative keratitis, highlighting how quickly routine pasture or hay exposure can become a serious eye problem.
The good news is that many alpacas do well when the ulcer is found early and treated aggressively. The exact plan depends on ulcer depth, whether the cornea is melting, whether infection is suspected, and how practical frequent treatment is on the farm.
Symptoms of Ulcerative Keratitis in Alpacas
- Squinting or keeping the eye closed
- Excess tearing or wet hair below the eye
- Cloudy, blue, or white appearance of the cornea
- Red or inflamed tissues around the eye
- Light sensitivity
- Rubbing the eye or acting painful when the face is touched
- Visible spot, divot, or dull area on the cornea
- Yellow discharge, worsening haze, or rapidly deepening defect
Any alpaca with a painful, cloudy, or suddenly abnormal eye should be seen urgently. Corneal ulcers can worsen within hours to days, especially if infection or corneal melting is present.
See your vet immediately if the eye looks very blue or white, the alpaca will not open the eye, there is yellow discharge, the cornea looks indented, or the eye seems to be bulging or leaking. Those signs can mean a deep ulcer, severe infection, or impending rupture.
What Causes Ulcerative Keratitis in Alpacas?
Most cases start with corneal trauma. Hay stems, grass awns, dust, bedding, fence contact, and self-trauma from rubbing can all scratch the corneal surface. Alpacas kept in windy, dry, or debris-heavy environments may be at higher risk because small particles can lodge under the eyelids or conjunctiva.
Foreign material is a well-documented cause in this species. A published herd case report described conjunctival plant foreign bodies causing conjunctivitis and ulcerative keratitis in alpacas. Once the corneal surface is disrupted, bacteria can colonize the ulcer, and in some cases fungi may also be involved, especially when plant material is part of the history.
Other contributors include eyelid or eyelash abnormalities, poor tear film quality, exposure keratitis if the eyelids do not protect the eye normally, and reflex uveitis that increases pain and inflammation. In camelids, severe corneal edema can follow trauma, uveitis, or surgery, which can complicate healing and make the eye look worse very quickly.
Because several different problems can look similar from a distance, it is important not to assume every red eye is "pinkeye." Your vet needs to determine whether the problem is a true ulcer, a foreign body, uveitis without ulceration, or a deeper corneal infection.
How Is Ulcerative Keratitis in Alpacas Diagnosed?
Your vet will start with a careful eye exam, often after gentle restraint and pain-aware handling. They will look for squinting, discharge, corneal haze, eyelid problems, foreign material, and signs of deeper inflammation inside the eye.
A fluorescein stain is one of the most important tests. This dye sticks to areas where the corneal surface is missing, helping confirm an ulcer and outline its size. If your vet is worried about a very deep ulcer or rupture, they may also use the stain to look for leakage from the eye.
Depending on the case, your vet may evert the eyelids to search for plant material, assess tear production, and evaluate for reflex uveitis. If the ulcer is deep, melting, recurrent, or not improving, they may recommend cytology and culture to look for bacterial or fungal organisms and guide medication choices.
Referral to a veterinary ophthalmologist may be the next step for severe ulcers, stromal abscesses, suspected fungal keratitis, or cases needing surgery. That can be especially helpful when frequent rechecks, advanced imaging, or corneal support procedures are needed.
Treatment Options for Ulcerative Keratitis in Alpacas
Spectrum of Care means you have options. Here are treatment tiers at different price points.
Budget-Conscious Care
- Farm-call or clinic exam
- Fluorescein stain and basic ophthalmic exam
- Removal of obvious superficial foreign material if present
- Broad-spectrum topical antibiotic selected by your vet
- Pain control, often including oral anti-inflammatory medication
- Atropine if uveitis or painful ciliary spasm is present
- Fly mask or environmental protection and close recheck
Recommended Standard Treatment
- Complete ophthalmic exam with fluorescein staining
- Sedation or restraint support if needed for safe treatment
- Frequent topical medications, often antibiotic plus atropine and additional anti-collagenase support when melting is suspected
- Oral pain control and anti-inflammatory treatment as directed by your vet
- Cytology and culture for nonhealing, deep, or infected ulcers
- Serial rechecks every 1-3 days early in the course
- Referral discussion if the ulcer is deep, central, or worsening
Advanced / Critical Care
- Referral to a veterinary ophthalmologist or hospital
- Hospitalization for intensive eye-drop schedules when needed
- Corneal cytology and culture with targeted antimicrobial or antifungal therapy
- Procedures such as temporary tarsorrhaphy, third-eyelid flap, conjunctival graft or flap, or keratoplasty in select cases
- Management of deep, melting, fungal, or perforated ulcers
- Advanced pain control and monitoring for globe rupture or vision loss
Cost estimates as of 2026-03. Actual costs vary by location, clinic, and individual case.
Questions to Ask Your Vet About Ulcerative Keratitis in Alpacas
Bring these questions to your vet appointment to get the most out of your visit.
- How deep does this ulcer look, and is the eye at risk of rupture?
- Did you find any hay, grass awns, or other foreign material under the eyelids?
- Do you suspect bacterial infection, fungal infection, or mostly trauma and inflammation?
- How often do the eye medications need to be given, and what matters most if frequent dosing is hard on the farm?
- Does my alpaca also have uveitis, and would atropine or additional pain control help?
- When should we recheck the fluorescein stain to make sure the ulcer is healing?
- At what point would you recommend culture, referral, or surgery?
- What warning signs mean I should call right away, even before the scheduled recheck?
How to Prevent Ulcerative Keratitis in Alpacas
Not every corneal ulcer can be prevented, but good environmental management helps. Reduce sharp plant debris in feeding areas, check hay for coarse awns when possible, and keep dusty bedding and windblown irritants to a minimum. If an alpaca is prone to rubbing its face, ask your vet to look for underlying causes such as irritation, parasites, dental issues, or eye pain.
Routine observation matters. A small amount of squinting or tearing can be easy to miss in a stoic animal, but early treatment is the best way to prevent a superficial scratch from becoming a deep infected ulcer. During daily checks, look for asymmetry, wetness below the eye, cloudiness, or reluctance to open the eye in bright light.
Prompt foreign-body removal is also important. Plant material trapped under the eyelids or conjunctiva has been reported as a cause of ulcerative keratitis in alpacas, so any eye irritation after pasture turnout, transport, or hay changes deserves attention.
Avoid using leftover eye medications unless your vet tells you to. Steroid-containing eye products can make an ulcer much worse if the cornea is damaged or infected. When in doubt, have your vet stain the eye before treatment decisions are made.