Dog Pannus Management: UV Protection and Medication

Combining UV protection with topical immunomodulatory medication optimizes long-term welfare for dogs with chronic superficial keratitis (pannus).

Key Facts

UV radiation worsens pannus by activating the immune response in the cornea — UV protection directly slows progression
Dogs at altitude have significantly higher UV exposure and typically develop more severe pannus
Cyclosporine 0.2% ophthalmic solution reduces corneal vascularization and pigmentation in 70-80% of treated dogs
Tacrolimus 0.02-0.03% provides an alternative for dogs with inadequate response to cyclosporine
Combination therapy (cyclosporine plus corticosteroid) provides superior control in severe or rapidly progressing cases
UV-protective goggles (Doggles) with appropriate UV filtering significantly reduce sun-related progression

Welfare Considerations

The lifelong nature of pannus management requires owners to understand that they are not curing the disease but controlling it. Excellent disease control with consistent treatment and UV protection can preserve vision and corneal clarity for the dog's entire life. Inadequate control, from treatment discontinuation or insufficient UV protection, allows progressive corneal pigmentation and vascularization that eventually compromises vision significantly. The welfare difference between well-controlled and poorly controlled pannus over a dog's lifetime is substantial — the daily commitment to treatment is the welfare investment.

What You Can Do

Apply prescribed ophthalmic medication twice daily consistently — do not reduce frequency without veterinary guidance even if eyes appear normal
Fit affected dogs with UV-protective goggles for outdoor activities, especially at high altitude or in bright sunlight
Schedule ophthalmology re-evaluations every 3-6 months to monitor disease control and adjust treatment if needed
Add topical corticosteroids during flare-ups as prescribed — do not manage flares with cyclosporine alone if response is inadequate
Never discontinue treatment without veterinary direction — relapse occurs rapidly and may be more difficult to re-control
Photograph the eyes at regular intervals to enable objective comparison of disease control over time