Perioperative miosis

Perioperative Miosis

Perioperative miosis is a vision problem caused by some types of surgeries. It is characterized by a decrease in the size of the pupils of the eyes post-operation. Generally, this is most noticeable when patients are exposed to dim or indoor light and the pupil fail to dilate or dilate slowly. Post-operative miosis can be a result of the use of certain medications or surgical procedures, such as the use of anesthetics or administration of anticholinergic drugs.

The risk of developing perioperative miosis can be decreased by avoiding certain types of drugs or medical procedures prior to undergoing surgery. It is important to inform the doctor or anesthesiologist about any current medications or other medical conditions, as these may increase the risk of developing perioperative miosis after surgery.

Types of Risk Factors

  • Exposure to certain types of anesthetics during surgery
  • Administering certain types of anticholinergic drugs prior to surgery
  • Patients with chronic medical conditions such as glaucoma
  • Certain medications used preoperatively
  • Postoperative inflammation
  • Deprivation of eye exercises and activities

Treatment and Prevention

The treatment and prevention of perioperative miosis involves avoiding certain medications or procedures that can increase the risk of the condition, as well as properly preparing for the surgery. During the preoperative exam, the doctor should be informed of all medications and any other medical conditions that may put the patient at greater risk for developing perioperative miosis. Additionally, if possible, performing certain eye-strengthening activities before the surgery may help reduce the risk.

After surgery, the doctor may prescribe eye drops to help increase the dilation of the pupils and reduce the effects of post-operative miosis. Additionally, utilizing certain eye patches or wearing sunglasses, especially at night can help protect the eyes from bright light and lessen the symptoms of perioperative miosis.