Near Vision Tester YSNV100
| Product parameters | |
| Brand: | YSENMED |
| MOQ: | 1 |
| Package: | Wooden Package |
| Ship From: | Guangzhou |
| Lead Time: | 1-3 days |
| Customization: | Yes |
Near Vision Tester
The YSNV-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.
The refractive tests include:
· Measurement of visual acuity using Snellen 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.
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.
| Test Distance: | 36cm |
| distant control: | 60cm |
| size: | 220(H)*210(W)*42(D)mm |
| weight | 780g |
| power supply | LR6AA/1.5V*3 |
