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Merck Manual
Veterinary Manual
The trusted provider of veterinary information since 1955

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VETERINARY PET
Persistent pupillary membranes, cat
persistent-pupillary-membranes-cat-hamor-sized
Persistent pupillary membranes, cat

    Iris-to-cornea PPM originating from the iris collarette region and adhering to the central posterior cornea in a cat.

Courtesy of K. Gelatt.

In these topics
The Anterior Uvea in Animals

Merck & Co., Inc., Rahway, NJ, USA (known as MSD outside of the US and Canada) is dedicated to using the power of leading-edge science to save and improve lives around the world.  The Merck Veterinary Manual was first published in 1955 as a service to the community.  The legacy of this great resource continues as the Merck Veterinary Manual in the US and Canada and the MSD Vet Manual outside of North America.

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