Dog Corneal Ulcer Prevention and Emergency Management

Corneal ulcers are painful eye injuries in dogs that require prompt treatment to prevent vision loss and chronic pain.

Key Facts

Corneal ulcers occur when the epithelial layer of the cornea is disrupted, exposing pain-sensitive stroma
Brachycephalic breeds including Pugs, French Bulldogs, and Shih Tzus are at highest risk due to prominent eyes and lagophthalmos
Simple (superficial) ulcers heal in 3-7 days with topical antibiotics; indolent ulcers may require debridement or grid keratotomy
Fluorescein dye staining confirms and maps corneal ulcers, guiding severity assessment
Deep ulcers that penetrate to Descemet membrane (descemetoceles) are vision-threatening emergencies requiring immediate surgery
Self-trauma via pawing is a major cause of ulcer progression - an e-collar is essential during treatment
Topical atropine reduces ciliary muscle spasm pain but requires careful monitoring for systemic effects

Welfare Considerations

Corneal ulcers cause intense, constant pain - eyes are extremely densely innervated. Dogs with corneal ulcers often hold the eye shut, squint, and show obvious signs of distress. Appropriate pain management alongside antimicrobial treatment is essential. Brachycephalic owners should learn warning signs to enable rapid intervention before superficial ulcers progress to deep, vision-threatening injury.

What You Can Do

Seek same-day veterinary care for any dog holding an eye shut, squinting, or pawing at an eye
Keep an Elizabethan collar on during treatment - self-trauma is the most common cause of ulcer progression
Apply all medications as directed - corneal antibiotic coverage must be maintained at appropriate frequency
Return for scheduled rechecks to confirm healing progression
Learn the signs of corneal perforation - sudden pain relief followed by cloudiness may indicate rupture