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.
- Fixation disparity test for uncompensated heterophoria motor eye dominance.Accommodation-convergence relationship.
- Quantitative evaluation of foveal suppression in heterophoria patients.
- Near point of convergence.
- Targets for subjective cover tests for heterophoria and harmonious ARC.
The Binocular balance tests include:
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
|NVT-100 Packing List|
- Test Distance: 36cm
- Distant Contral: 60cm
- Size: 220(H)×210(W)×42(D)mm
- Weight: 780g
- Power Supply: LR6 AA/1.5V×3