Definitions
There is 1 meaning of the phrase
Pupillary Sphincter.
Pupillary Sphincter - as a noun
Example Sentences
"The pupillary sphincter muscles control the size of the pupil in the eye."
"Damage to the pupillary sphincter can result in difficulty with focusing and light sensitivity."
"The pupillary sphincter is a circular muscle located in the iris of the eye."
"Contraction of the pupillary sphincter causes the pupil to constrict."
"In low light conditions, the pupillary sphincter relaxes to allow more light into the eye."