An autorefractor is used to determine an individual’s prescription by measuring how light is affected as it reflects through the eyeball. The process is quick and painless for the patient, and the data ensures a baseline to determine the correct eyeglass or contact lens prescription.
How Does an Auto Refractor Work?
The auto refractor shines light into the eye, measuring how it changes as it bounces off the back of the eye (the retina). Then, the patient is shown an image that moves in and out of focus. As reflections are made, several measurements determine when the eye is properly focused. These final figures determine the level of vision correction needed.
Unlike many conventional refraction diagnostic devices, some autorefractors utilizes a unique wavefront technology algorithm based on Hartmann-Shack wavefront sensor, which analyzes many focal spots of a light wavefront. It can measure not just the basic refraction error of a patient, but to obtain a spatially resolved refraction map of the wavefront.
Types of Auto Refractors/Keratometers
Latam Optical carries several auto refractors that are also built-in keratometers. This product duo determines eye prescription and measures the shape of the cornea. These capabilities are crucial for diagnosing eye conditions such as astigmatism or corneal distortion. They are also especially helpful for fitting contact lenses. Here is our auto refractor/keratometer lineup:
The Genesis RK-2 Auto Refractor is an advanced machine that features Wavefront technology with the ability to generate Zernike Map that reproduces the diagnosis on a graphic map for better understanding. It has a high-quality modern design, with smooth movements for greater comfort, with a motorized chin guard and thermal printer.
The Genesis RK-3 Auto Refractor includes a more sofisticaded Wavefront Tech camera delivering more even more accurate results; also included a wide range auto-tracking function. It measures automatically right/left eye with no need of manual switch. Operation is faster and more convenient
The auto refractor/keratometer is a must for any eye care practitioner. Make your eye exams more efficient and accurate for an affordable price. Send us a message to get more information.