Many people depend on glasses or contacts on a daily basis. Over the years, glasses and contacts become a way of life and become a daily habit, but they still have a certain amount of hassle associated with them. With Lasik surgery, many people are able to put away the glasses and contacts forever.

Before beginning the surgery, the surface of the corneas are examined by a computer controlled device, such as Wavefront. This serves to determine the exact shape of the cornea and to map out the eye. It will then determine the degree of astigmatism and any other irregularities. This information allows the surgeon to determine how much corneal tissue needs to be removed and where. The patient is prescribed antibiotics before the surgery to minimize the risk of infection.

The patient who wears contact lenses will often have to stop wearing them for a period of time before the surgery. This allows the cornea to develop adequate oxygen. Low-oxygen permeable contact lenses reduce the ability of the cornea to absorb oxygen. Because of this, blood vessels may grow into the cornea through a process called corneal neovascularization. This can cause an increase in the inflammation of the area and cause the eyes to take longer to heal. It can also cause discomfort during the procedure.