Auto refractometer portable ,ophthalmic equipments

AutoSight 900

(Handheld Vision Screener)

To make best use of this product and avoid risk of damage or injury, please carefully read thisoperation manual before use of the AutoSight 900 system.

Name:Handheld Vision Screener

Model:AutoSight 900

Application
This product is used for preliminary determination of adults' or children'srefractive error. The result of this product is used for vision screening only. It cannot replace eye exam.
Specifications
1.        Basic information
1.1.       Dimensions: 200mm×80mm×270mm
1.2.       Electrical safety: Battery charger (class I), main unit (internally powered)
1.3.       Laser safety: Laser (class I), wavelength 850nm, power <250μW
2.        Performance

The working principle of this vision screener is based on Hartmann-Shack wavefront sensor. The internal light source is focused to the retina by the refractive media of the eye and reflected back to the device. The diopter of the patient is obtained through calculation of the detected signal.

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