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Glaucoma
Elevated intraocular pressure from impaired fluid drainage, causing pain and blindness.
Key Facts
- Normal eye pressure: 10-25 mmHg; >50 mmHg rapidly causes blindness
- Dogs affected far more than cats (0.675% vs 0.197%)
- Dogs: usually primary/hereditary; Cats: usually secondary to uveitis or tumors
- More painful in pets than humans — pressure reaches much higher levels
- Often diagnosed late — pets compensate well with one eye
- Lifelong treatment required unless underlying cause resolved
- Enucleation sometimes recommended for blind, painful eyes