Lasting bilateral mydriasis is a medical condition in which the pupil of the eye remains dilated for an extended period of time. It is caused by damage to the nerves that control the pupils, as well as by certain medications. It can be a symptom of a serious underlying medical condition, such as an infection in the eye or a brain tumor, and requires immediate medical attention.
Causes of Lasting Bilateral Mydriasis
The most common cause of lasting bilateral mydriasis is damage to the nerves that control the pupils. This can occur as a result of an accident or trauma that affects the head or neck area. It can also be due to certain medications, such as anticholinergics, which are used to treat certain gastrointestinal disorders, and certain types of antipsychotics.
In rare cases, lasting bilateral mydriasis can be a symptom of a serious underlying medical condition, such as an infection in the eye or a brain tumor. It can also be caused by certain diseases, such as diabetes or multiple sclerosis.
Diagnosis of Lasting Bilateral Mydriasis
The diagnosis of lasting bilateral mydriasis is made by an ophthalmologist, who will conduct a physical examination of the eyes and order tests to look for any underlying medical conditions. The doctor may also ask about the patient’s medical history and any medications they are taking.
Treatment of Lasting Bilateral Mydriasis
In most cases, lasting bilateral mydriasis will resolve on its own without treatment. However, if the condition is caused by an underlying medical condition, treatment will be necessary to address the underlying condition. Treatment may involve medications, surgery, or a combination of both.