What is an aberrometer?
Many problems can arise when the eyes form a picture of what they see. Ideally, the light received by the eyes will be properly focused on the retina. In fact, light is sometimes distorted by imperfections in the cornea and lentils. This distortion is called aberration and is used to measure aberometer.
Light can be considered a collection of lines or beams. Draw a line that connects the tip of each beam, produces a wavefront. The wave can be considered a picture that represents how perfect light is. For this reason, it is sometimes referred to as wave technology or wavegower. In the eye without aberrations, the wool will be flat, like a piece of paper. In the eye with imperfections will be bent and distorted. Aberrometer will be inferred with a low level laser to the eye and measure the reflection or wavefront. Measurements can be done when the light hits the retina when it reflects the retina and leaves the eye, or in both times.
While the results only last a fewFor seconds, it takes a few minutes to create a WaveFront map - a Wavefront image -. The WaveFront map is unique for every patient. Some compare it with fingerprints because no two patients will share the same wool map.
aberrations may be lower or higher order. Lower order aberrations are conditions that most people know well: astigmatism, nearsightedness and foresight to name at least some. The vast majority of people with vision problems will have lower order aberrations.
higher order aberrations are less known and cause problems such as double vision or blurred vision. Before aberrometers, it was more difficult to treat and often remained undiagnosed. With the Wavefront map created by aberrometer, it is easy to diagnose and treat higher and lower -order aberrations. In addition, using a wave map in refractive operations such as a lasik, some higher -order aberrations can be permanently corrected.
Most aberometers are based on the technology invented by Johannes HarTmann and modified Roland Shack. Ophthonix Corporation has designed a top-class aberometer that is not based on Hartmann-Shack technology. Called Z-View® Aberrometer and can produce wave images with ten times a resolution of Aberometers based on Hartman-Shack in about one minute. Ophthonix uses higher -resolution images to produce its Izon® Wavefront lenses that the company claims to overcome traditional glasses.