At what age does glaucoma start in dogs?
Beatrice Hauck
2025-07-30 14:48:36
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Although dogs are born with the ocular defect that leads to primary glaucoma, the signs of glaucoma often do not appear until middle age. Primary glaucoma is a hereditary disease that is very common in dogs. Glaucoma can also develop secondary to another problems within the eye such as inflammation, cataracts, hemorrhage, trauma, lens dislocation (luxation) and cancer. In patients with primary glaucoma in one eye, many will develop glaucoma in the opposite eye within 6 to 9 months. However, the use of prophylactic therapy (glaucoma eye drops), can slow the development. With therapy, the second eye often develops glaucoma in 18 to 24 months.
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