New blood vessels cause bleeding and scarring and destruction of the delicate tissue at the back of the eye. Laser treatment causes the new blood vessels to disappear. Fluid may collect at the back of the eye. Fluid collects when the blood vessels at the back of the eye leak, rather like a river bursting its banks. Fluid damages the delicate structures at the back of the eye.
Laser treatment dries up the fluid.
Diabetes, blockage of a vein or an artery at the back of the eye are the commonest conditions which require laser treatment. It is not possible for you to know whether or not you need laser treatment. If you have diabetes, you must have a regular eye examination to ensure that any problems can be treated early and effectively. Regular eye examinations can detect the presence of new blood vessels or fluid. The Day of your Treatment Laser is performed under local anaesthetic as an outpatient procedure.