The NV-100 near vision tester enables a complete refractive and binocular vision investigation to be carried out with the head and eyes in their normal posture at any working distance.

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The refractive test includes:

• Measurement of visual acuity using Snallen letter and illiterate E-chart, and Times Roman reading types

• Accurate determination of presbyopic additions and other near corrections

• Near vision astigmatism tests

• Amplitude of accommodation including monocular measurements under binocular conditions

 

The binocular balance tests includes: 

• Fixation disparity test for uncompensated heterophoria motor eye dominance

• Quantitative evaluation of foveal suppression in heterophoria patients

• Near point of convergence

• Targets for subjective cover tests for heterophoria and harmonious ARC

 

Slight colour variations of the unit surround are possible.