Pupillary constriction · Constricted pupils · Pupillenverengung · Myosis · Congenital miosis
Miosis is an eye condition characterized by abnormally small, constricted pupils that do not dilate, or widen, properly. This occurs due to a dysfunction in the muscles of the iris or the nervous system pathways that control pupil movement. It can be congenital, meaning a puppy is born with it, and is routinely assessed during official veterinary eye examinations.
Owners will notice that the dog's pupils remain very small even in dim or dark environments. This can cause the dog to struggle to see well in low-light conditions, with signs usually becoming apparent from puppyhood.
While mild congenital cases often do not require intensive therapy, symptomatic relief can be managed with pupil-dilating eye drops. Treatment and diagnostic costs typically range from 150 to 1200 EUR depending on the underlying cause.
Estimated range of typical treatment cost. Actual cost depends on severity, clinic and region.
More conditions affecting the Eyes.