Is Iris Melanosis In Cats Dangerous. The malignant and more dangerous cause of hyperpigmentation in the feline iris is melanoma. It occurs when abnormal pigmented cells invade and proliferate throughout the iris.
Granulomas (parasitic or other) staphylomas; Luckily, most cases of iris melanosis do not undergo malignant change to melanoma. Or in other cases glaucoma (increased eye pressure).
When i first pointed out to the vet, she she it looked like just the iris changing color like it does is so many cats as they age, but that it could be the same melanoma thing the_food_lady mentioned.
Fortunately, most cases start with benign growths, or melanocytoma. Just as people get age spots, the pigmentation of a cat’s eye can become irregular with age. Melanosis afflicts many senior cats usually 12 to 14 years old, but most continue to live comfortable lives without developing serious symptoms. Primary ocular melanoma in dogs.