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Near Vision Unit

The Near Vision Disparity Unit combines a comprehensive range of tests for refraction and ocular motor investigations.


The unit is supplied with polarisation set at 90 degrees x 180 degrees (for UK market) or 45 degrees x 135 degrees (for export or use with a refractor head). 


The unit is rechargeable, incorporating the latest charging circuitry and is recharged via a plug-in power supply.


The new casing has a much smaller footprint to previous models, standing upright on the desktop, and a retractable measuring tape is incorporated.

The tests incorporated in the unit are as follows:

  • Fixation disparity test

  • Polarised foveal suppression test

  • Polarised test for arc & suppression in strabismus

  • Polarised bichromatic test

  • Polarised cross cylinder target & visual acuity balance test

  • Measurement of monocular amplitude of accommodation under binocular conditions

  • Stereopsis test

  • Tangent scale & spotlight

  • N5-N12 Times reading fonts

  • Dominant-eye & accommodation convergence relationship test

  • Visual acuity charts (both letter & E) in decimal notation

  • Near point convergence

Near Vision Unit

  • ACEY012EC

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