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As part of our expert eye care at Vista Vision Optical, our optometrist, Dr. David Nathanson, has had great success fitting contact lenses in our patients who have had some difficulty wearing them. We use corneal topography, which is a device that maps out your cornea, to help in the fitting of your contact lenses if you have high astigmatism and corneal problems. Corneal topography is a procedure that is used to monitor and measure changes that may occur not only to the shape, but the integrity, of the cornea of your eye. A corneal topographer projects a series of illuminated rings onto the surface of your cornea, which are reflected back into the instrument. After analyzing the reflected rings of light, a computer generates a topographical map of your cornea. The images produced by the topographer can be very helpful to our Midtown optometrist during comprehensive Bushwick eye exams.
Corneal topography, also known as videokeratography, or corneal mapping, represents a significant advance in the measurement of corneal curvature. Dr. Nathanson wants your contact lenses to fit your eyes as well as possible, and knowing the exact shape of your cornea is extremely important. This is often unable to be seen in a regular eye exam. Contact lenses that are too tight often constrict normal tear flow, producing an unhealthy environment for normal cell function. On the other hand, a lens that fits too loose can allow for excess movement of the lens on your eye, causing discomfort, and possible damage to your epithelial cells.
Wearing contact lenses requires a great deal of responsibility, and following proper cleaning routines, and wearing schedules is necessary. Through comprehensive eye exams, we will monitor small changes in your eyes in order to avoid potentially serious contact related complications. Within the past 10 years, corneal topography has evolved from a complex and costly device, used only for clinical research in larger institutions, to a significant in-office tool that Dr. Nathanson now specializes in. Along with advances in software development and computerization, corneal topographers have become smaller, much more compact, more affordable, and definitely more precise. Although many different systems are now available, they all share some common measurement characteristics and are a welcome, and necessary, part of your eye exam when being fitted for contact lenses.
By Vista Vision Optical
September 29, 2015
