Auto Refractometer, Auto Ref Keratometer

An auto refreactometer or digital autorefractor is a computer-controlled machine used during an eye examination to provide an objective measurement of a person's refractive error and prescription for glasses or contact lenses. it works by measuring how light is changed as it enters a person's eye.

This is an alternative method of finding out the refraction error in contrast to the conventional refractive technique. The procedure is called refractometry or optometry. The Auto Refractometer can be of various types depending on the underlying principle. The various indications of performing Auto Refractometer are myopia, hyperopia, astigmatism, presbyopia, spectacle prescription, and contact lens prescription, which serve as a starting point for subjective refraction for ophthalmologists and optometrists in pediatric refraction and people with a disability requiring spectacles. This activity covers the various commercially available subjective and objective Auto Refractometer and provides information for healthcare providers who work with ocular disorders that Auto Refractometer can address.

There are different types and brands of auto refreactometers available in the market, such as:

• Rexxam ACCUREF K-900/R-800: This is a combination of an autorefractor, a keratometer and a corneal mapping system. It can measure the refractive power of the eye, the curvature of the cornea and the shape of the corneal surface.
• I Optik AR / ARK 910: This is an autorefractor and keratometer that can measure both spherical and cylindrical refractive errors, as well as corneal radius and astigmatism. It has a high-speed measurement mode and a fogging function to prevent accommodation.
• Eyevis RM-9200: This is a fully automatic autorefractor and keratometer that can measure both eyes in succession without manual intervention. It has a tilting screen and a compact design. It can also measure pupil size and corneal diameter.