Laser Thermal Keratoplasty (LTK) is a procedure that uses a special beam of focused laser energy to correct long-sightedness. The laser beam used during an LTK procedure doesn’t cut the cornea, or damage any tissue surrounding the eye. Because nothing touches the eye during the procedure (apart from the actual laser beam), it is referred to as a ‘non-contact’ laser treatment. Your surgeon will use a special instrument to help keep the eye open during surgery.
How is it performed?
During your consultation and tests, your surgeon will determine a special pattern that will be followed during surgery. The laser energy is then applied to the cornea in this pattern, which causes the collagen fibres to shrink. This changes the shape of the cornea, correcting the patients poor vision. No tissue is removed during this type of procedure. Each time,the laser is directed at a certain pre-determined point of the cornea for between 1-3 seconds, The number of times the laser is applied depends on the severity of the patients’ poor vision.
Most people find that they are able to return to their normal activities within about half and hour of a LTK procedure.