Shenzhen Certainn 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
  • Innovative Design

    The integration of creativity and technology helps to make refractive error screening instantly learnable and intuitive. Design of the iRef® is patented since 2013[1].

    [1]Invention Patent, ZL 201310207478.7, ZL 201610094759.X; Utility Model Patent ZL 201320714971.3 , ZL 201520197505.1.

  • Quick and Easy-to-use

    Simply look into the device and rotate the dial, until the small eye chart comes into focus. The number on the screen indicates the strength of glasses the user needs.

  • Portable

    The compact design and light weight makes the iRef® extremly portable. It can be carried anywhere by anyone, ready to be used at any moment of the day.

  • Eyehealth Record Management from Mobile

    Manage your eye care records in our mobile application "Eyecare".

The iRef® provides a quick and convenient solution for primary eye care. Designed for first evaluation of refractive error, it can be used in any place: communities, schools, optical stores, and any other places where it is necessary to make a vision screening.

  • Image gallery
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  • Specifications
  • Downloads
  • iRef

  • iRef

  • iRef

  • iRef

  • iRef Package

  • iRef

  • iRef Application

  • Suitable for

  • Children, adolescents and adults

  • Spherical equivalent range

  • -12.0D to +6.0D

  • Steps

  • 0.25D

  • Spherical degree of tolerance

  • ±0.25D

  • Lighting

  • LED back-lighting is uniformity, constant, not reflective and not dazzling

  • Power

  • Three AAA batteries

  • Net weight

  • 195g

  • Size

  • 185mm(L) x 47mm(W) x 55mm(H)

  • Product Classification

  • Class 1 Medical Device (Non-invasive, Non-contact with blood)