Adie's pupil, also known as tonic pupil, is a type of eye condition that causes the pupil of the eye to remain enlarged and unresponsive to light. It is named after the British neurologist William John Adie who first described the condition in 1931. The condition is not considered to be serious, but it can cause significant discomfort and vision problems.
Symptoms of Adie's Pupil
The main symptom of Adie's pupil is an abnormally large pupil that is not responsive to light. The pupil may also be sluggish in its response to other stimuli such as changes in focus and the presence of objects near the eye. Other associated symptoms may include blurred vision, double vision, and headaches.
Causes of Adie's Pupil
The exact cause of Adie's pupil is not known, but it is believed to be related to damage to the parasympathetic nerve that controls the pupil. This nerve damage can be caused by a variety of conditions, including trauma, infection, or autoimmune disorders. It can also occur as a complication of certain drugs, such as anticholinergics or antidepressants. In some cases, no cause can be identified.
Diagnosis of Adie's Pupil
Adie's pupil is typically diagnosed through a comprehensive eye exam. During the exam, the pupil will be examined for signs of abnormal size and responsiveness to light. In some cases, further testing may be needed to rule out other conditions with similar symptoms.
Treatment of Adie's Pupil
In most cases, treatment for Adie's pupil is not necessary. Over time, the pupil may return to its normal size and responsiveness. In some cases, however, treatment may be needed to reduce symptoms and improve vision. Treatment options may include the use of eye drops or glasses, as well as physical therapy to strengthen the eye muscles.