"This instrument is used to measure the spherical refractive-power, cylindrical refractive power, the direction of astigmatic axis.KR-9000 Auto ref/keratometerHas the functions of both refractometer and keratometerAdopts the latest ARM processor and image processing technology—fast system and more clear imagesMature technique from Japan. Humanized auto mist test process: will reduce the errors caused by human eye adjustments—more accurate measure resultsIntegral pressing and CNC machining for the optical rack: ensure the measurement consistency and accuracy—more stable system5.7"" LCD screen provides more comfortable interfaceSupports data transmission with auto phoropter, improving the work efficiencyAuto PD measurementOne-key lock function, enables to lock the moving head fasterNovel design and ergonomic structure give the customer sense of beauty and comfortable operation."
An electrically-powered, ophthalmic device designed to be used by a healthcare professional to objectively measure the refractive error of the eye (the inaccuracies of focusing light upon the retina) by measuring how light is changed when it enters the patient's eye(s). The device emits light into the eye and detects the light reflection which is measured for sphere, cylinder, axis and/or high order aberration measurements, typically measured in dioptres (the reciprocal of the focal length of the lens expressed in metres). Also known as an aberrometer, the device uses this information to automatically calculate the lens prescription needed to correct the patient's vision.