Is the fentanyl IV safe to use during cataract eye surgery?
Yes it's safe if properly supervised by an anaesthetist
You should be medically cleared by your PCP.
Yes
Fentanyl is a powerful anti-pain medication with respiratory depression as a possible side effect. It is safe as long as the patient is monitored for breathing and oxygen saturation with a trained nurse anesthetist or anesthesiologist at the bedside during the procedure. Cataract surgery is generally pain free and so the need for fentanyl would raise questions as to what is happening during this procedure.