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How to know if your dog is losing vision or has gone blind already?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Male | neutered | 9 years and 11 months old

How do I know if my dog has gone blind or is going blind?

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1 Answer

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Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on December 15th, 2017

Pupil reflex is the best way to determine if there is blindness, the pupil is the most central part of the eye, if you take a flash light in the dark and direct it toward the eye at once you will see the pupil constrict, this is a sign that the eye works properly in most cases.

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