
Feature:
The refractive tests include:
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 include:
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.
A centimeter ruler for measuring working and testing distance is included.
The chart can be illuminated individually by means of an infra red remote controller
Technical Data | |
Test Distance | 36cm |
Distant Control | 60cm |
Size | 220(H)×210(W)×42(D)mm |
Weight | 780g |
Power Supply | LR6 AA/1.5V×3 |