A laser is a high-energy beam of light that can selectively transfer energy into tissue to treat the skin. Many surgical procedures are performed using lasers. General surgeons use a variety of laser wavelengths and laser delivery systems to cut, coagulate, vaporize or remove tissue. Some common surgical procedures use includes breast surgery, removal of the gallbladder, hernia repair, bowel resection, hemorrhoidectomy, solid organ surgery and treatment of pilonidal cyst. The advantages of using...

People generally get tired wiping sweat off their eyeglasses or cleaning their contact lens. Maintaining contact lenses is a tedious and time-consuming task. Laser eye surgery is used to correct the defects of the eyes such as myopia, commonly called nearsightedness, or hyperopia also known as farsightedness, and astigmatism. In recent times, medical lasers have become more sophisticated and are complemented by surgical techniques that are less invasive. Laser eye surgery is generally considered...

The highly collimated beam of a laser can be further focused to a microscopic dot of extremely high energy density. This makes it useful as a cutting and cauterizing instrument. Lasers are used for photocoagulation of the retina to halt retinal hemorrhaging and for the tacking of retinal tears. Higher power lasers are used after cataract surgery if the supportive membrane surrounding the implanted lens becomes milky. Photodisruption of the membrane often can cause it to draw back like a shade, almost...