Your eye doctor will measure your pupil size in millimeters in both light and dark conditions. He will try to assess whether or not the pupils are significantly different in dilation from one another, a key indicator of anisocoria. Doctors may...
Anisocoria can be caused by a wide array of conditions ranging from Horner's Syndrome, which can be deadly, to oculomotor nerve palsy to benign mechanical problems. Unless and until you can isolate the root cause of the problem, your therapies...
Your doctor can conduct a number of tests which can determine both the severity of the condition and possible causes of it. On the benign scale, the condition can stem from nothing more than migraine headaches. On the other hand, anisocoria can...
Cavernous sinus thrombosis (CST) is a rare complication of facial infections. A blood clot forms in the cavernous sinus, stopping blood flow. The cavernous sinus is located in the skull and drains deoxygenated blood from the brain and face back to...
The iris is the colored muscle, called the sphincter muscle, of the eye that expands and contracts the pupil to control the amount of light entering the eye. In an eye that functions properly, the pupil will appear larger in low light and look...
The eye pupil is the hole in the middle of the iris, the colored part of the eye. Pupils dilate and shrink in response to light; two muscles control pupil size, according to "Fundamentals for Ophthalmic Personnel." Pupillary reactions are...
The color of the iris of the eye is determined by genetics; children can have totally different eye colors than their parents. Eye color can change during a person's lifetime for several reasons. Some of the reasons for the changes are normal and...