Laparoscopic Heller myotomy for achalasia is a minimally invasive surgical procedure used to treat achalasia, a condition in which the lower esophageal sphincter fails to relax properly, causing difficulty in swallowing and regurgitation of food. The procedure involves making small incisions in the abdomen and using a laparoscope to guide the surgeon in cutting the muscles of the lower esophageal sphincter, allowing it to open more easily and improve the passage of food from the esophagus to the stomach.