Ciliospinal center

The ciliospinal center (in Latin: centrum ciliospinale) is a structure which receives input from the pretectum, and has output to the superior cervical ganglion.

It plays a role in the control of the iris dilator muscle. It is also known as "Budge's center", or "centre".

It is associated with a reflex identified by Augustus Volney Waller and Julius Ludwig Budge in 1852.