Tonic Pupil is a term whose meaning is
the same as Adie's
Pupil.
It is also known as Adie's Tonic Pupil, Adie
Syndrome and as Holmes-Adie's Syndrome, among
other names.
Tonic Pupil refers to a neurological condition affecting
the pupil
of an
eye and the autonomic nervous system.
Affected pupils are "dilated", that
is the dark/black central "pupil" is larger than normal,
due to damage to the nerves
to the ciliary
muscle (of the eye) and the iris
(of the eye).
Tonic Pupils react abnormally poorly to changes in light level.
Tonic Pupils are also characterised by high sensitivity
to dilute 0.1% pilocarpine drops - which barely affect normal pupils but
cause marked constriction (reduction in size) of Tonic Pupil.
This condition is not life-threatening.
Both eyes may be affected (bilateral) but in most cases only one eye is
affected (unilateral).
More about Ophthalmology:
: This section includes short definitions
of many diseases, disorders, and conditions of the eyes and visual system.
For definitions of other terms in this category, choose from the list
to the left (but note that this is not a complete/exhaustive list).
Other related pages include the diagram
of the eye, and definitions
of parts of the eye, a description
of the human retina, and definitions
of parts of the retina, and the section of short definitions
of clinical and surgical procedures re. eyes and human visual system.
For further information see also our section of Books
about Ophthalmology.
|
 |
This Section
is about
Diseases
and Disorders of the Eyes and Visual System.
To read about other diseases, disorders, or conditions of the eye and
human visual system, use the links on the left-side of this page.
|
