Shenzhen Moptim Imaging Technology Co., Ltd.
Member companies
Hangzhou Moptim Medical Equipment Co., Ltd.
Shenzhen certainn technology co., ltd. Zhengzhou branch
Shenzhen certainn technology co., ltd. Wuhan branch
Shenzhen certainn technology co., ltd. Chengdu branch
Shenzhen certainn technology co., ltd. Jinan branch
Shenzhen certainn technology co., ltd. Xian branch

Handheld Auto Refractometer

  • Eye refraction screening

    Hand-held automatic refractometer (Handheld Auto Refractometer HAR) based Shack-Hartmann wave front sensor to detect eye refraction principle to determine the vision. Handheld vision tester is mainly used for the preliminary determination of eye refraction

  • Image gallery
  • Video
  • Specifications
  • Downloads
  • Operation

Optical Parameters

  • Sphere range

  • -6.0D to +8.0D (Infant mode); -6.0D to +8.0D (Adult mode); -9.0D +2.0D (Myopia mode) (HAR-880 only)

  • Sphere intervals

  • 0.25D/0.1D (Infant mode); 0.25D/0.1D (Adult mode); 0.25D/0.1D (Myopia mode) 

  • Sphere tolerence

  • ±0.5D (Infant mode); ±0.5D (Adult mode); ±0.5D (Myopia mode) 

  • Cylinder range

  • -3.0D to +3.0D (Infant mode); -3.0D to +3.0D (Adult mode); -3.0D +3.0D (Myopia mode)

  • Cylinder intervals

  • 0.25D/0.1D (Infant mode); 0.25D/0.1D (Adult mode); 0.25D/0.1D (Myopia mode) 

  • Cylinder tolerence

  • ±0.5D (Infant mode); ±0.5D (Adult mode); ±0.5D (Myopia mode) 

  • Axis of astigmatism range

  • 1° to 180° (Infant mode); 1° to 180° (Adult mode); 1° to 180° (Myopia mode) 

  • Axis of astigmatism intervals

  • 1° (Infant mode); 1° (Adult mode); 1° (Myopia mode) 

  • Axis of astigmatism tolerence (0.25D to 1.00D)

  • ±10° (Infant mode); ±10° (Adult mode); ±10° (Myopia mode) 

  • Axis of astigmatism tolerence (1.25D to 3.00D)

  • ±5° (Infant mode); ±5° (Adult mode); ±5° (Myopia mode) 

Function Parameters

  • Working distance

  • 335±10mm (Adult/Infant mode); 268±10mm (Myopia mode) (HAR-880 only)

  • Confidence level

  • 10

  • Output of the laser radiation

  • 150 to 200μw

  • Wavelength

  • 850±20nm

  • Data acquisition time

  • 2s/eye

  • Battery voltage

  • d.c.11.1V

  • Distance measurement

  • Automatic, with audible and visual hint

  • Battery life

  • More than 6 hours of continuous usage

  • Low-Battery warning

  • Indicates 15 minutes usage remains