The orbiculus ciliaris is an older (now lesser-used) name for the ciliary ring which is located in each eye in the human body. This is one of the three "zones" of the ciliary body (connecting the choroid with the iris).
The orbiculus ciliaris (or 'ciliary ring') is an area approx. 4 mm wide in which the ciliary body is connected to the anterior (front) part of the choroid. It is primarily a connecting component and as such does not have as active a role as the ciliary muscle, for example.
More about Ophthalmology:
This section includes short definitions and descriptions of the parts of the eye.
For other descriptions in this category, choose from the list to the left (but note that this is not a complete / exhaustive list).
Other related sections include:
- A labelled diagram of the eye
- A concise description of the human retina with brief descriptions of the parts of the retina
- Diseases and disorders of the human eye and the human visual system
- Clinical and surgical procedures re. eyes and human visual system
For further information see also our pages of books about ophthalmology.