Laparoscopic cholecystectomy is performed using several small incisions located at various points across the abdomen. Corneal pachymetry is essential for other corneal surgeries such as Limbal Relaxing Incisions. Pain can come from possible lacerations, incisions, uterine contractions and sore nipples. This includes burns, acne scars, chickenpox scars, ear piercing, scratches, surgical incisions, and vaccination sites. The surgeon then implants the grafts into small incisions, called recipient sites. Their use in surgical procedures is to help prevent infection of incisions. This surgical procedure consists of making three to four incisions in the abdomen, each long. This is usually performed laparoscopically, through several very small incisions. A few additional small incisions are made in the abdomen. The skin is opened with small curved incisions over the diseased tissue. Astigmatism can also be treated with limbal relaxing incisions or an excimer laser procedure. Then all tissue to be removed is passed through the small abdominal incisions. IR performs both diagnostic and therapeutic procedures through very small incisions or body orifices. At lower power levels, it is capable of making 'surgical' incisions into a ship's hull. Thalamotomy can be performed without incisions using ultrasound waves.