Why are my cat’s eyes always dilated? This is a question many cat owners ask me with concern in their voices.Ĭertainly, noticing something unusual is always cause for anxiety and needs to be looked into.Ī cat with dilated pupils could have a range of medical conditions and common explanations include: #1 High Blood Pressure Medication side effects are another consideration.įor example, if atropine drops have been applied, the pupil will dilate temporarily.
While your senior cat is in no danger from its iris atrophy, it is important to confirm the diagnosis with a vet. The weaker muscle is less capable of constricting pupils. This naturally thins out in our senior kitties. The colored part of the eye is also called the iris. Iris atrophy that occurs in elderly cats can lead to larger pupils. You should see your vet check for this response by shining a small flashlight into the eyes. However, as soon as the level of light increases, the pupils constrict right down.
In dim light, it is normal for pupils to dilate in an attempt to allow the maximum amount of light in. Once your kitty calms down and is feeling back to normal, its pupils will constrict. In a healthy cat, we will see temporary pupil dilation due to: #1 High stress levelsįor example, a cat who is in extreme pain or who is very anxious about being in a vet clinic will have large, black eyes. Scientifically speaking, when the pupils do not constrict back to regular size, this is called ‘mydriasis’.ĭilation of the pupils of the eye should occur in certain circumstances but should never be a permanent change.
What if only one of my cat’s pupils is dilated?.What is the prognosis for my cat with dilated pupils?.If my cat’s eyes are always dilated, what test will the vet run?.
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