Corneal Molding Gentle Vision Shaping System

By John L. Burns, OD

Eye Design Family Eyecare Center

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Corneal Molding Gentle Vision Shaping System

Attempts to re-shape the cornea have been tried since the introduction of contact lenses. The process used to be called orthokeratology. This process would often take over a year to complete and the results were not nearly as favorable as Gentle Vision Shaping System (GVSS). For this reason, many doctors and patients elected not to participate in orthokeratology. With the newer diagnostic technology used to measure the corneal shape and the newer materials being used for vision retainers, GVSS is now a viable alternative for many nearsighted patients.

GVSS uses specially designed vision retainers to gently and gradually reshape the front surface of the eye (the cornea) to eliminate or reduce nearsightedness (myopia). It is similar to the use of a dental retainer used by an orthodontist to realign crooked teeth. The vision retainer is similar to a contact lens and worn only at night, while sleeping. It is then removed upon awakening.

The main purpose of GVSS is to be free from both contact lenses and eyeglasses for the majority or possibly all waking hours. While this is ideal for sports enthusiasts or those who work in dusty or dirty environments, for others GVSS offers the appeal of being free from corrective lenses during the day. GVSS also offers relief from the problems sometimes associated with full time contact lens wear like drying of the eyes and things getting on or under the lenses.

GVSS does not work on every patient and needs to be performed in a very exact and meticulous manner. Doctors have to be certified and have the necessary diagnostic equipment (corneal topographer), computer software and expertise to perform GVSS.

The procedure works best on mild to moderate amounts of nearsightedness or astigmatism. More severe cases can have their vision improved, but will still need some vision correction. The procedure also does not work well on certain shaped corneas. Also, there are several un-measurable factors for each patient most notably the cornea's rigidity. Thus the speed of GVSS varies with each patient. Generally, but not always, less nearsighted patients respond faster than more nearsighted ones. There are no age barriers for GVSS. It is safe for children and adults and is an excellent alternative for children who are just first becoming nearsighted. Also, while success rates are very high, success cannot be guaranteed due to factors like the inability to wear the vision retainer for physiological reasons, dry eyes or other systemic health problems that may reduce wearing time.