HENAN MEDICAL

Henan Medical
Miami, FL
ph: 305-599-0204
alt: 800-982-8890
henanmedical@att.net

Vision Screeners

Depisteo Vision Screener VT1 | Vision Tester

Despisteo VT1 Occupational Health Edition
Screening session estimated from 2 to 4 minutes / patient
(depending on the configuration of the unit)
Main Features and benefits:
-Light weight (only 10 pounds)
-Automated (no physical interaction between the operator and the unit)
-User friendly interface : our software is very easy to use
-Save the patients test results on a database/ print out the results

Designed for Occupational Health Professionals:

Average screening session reduced to 2 to 4 minutes per employee !

- Purdue Job Standards and DOT pre-settings Included
- Import the Depisteo Test Results from your existing EMR (OHM, Medgate, Systoc)

Tests Performed:
Acuity test: Landolt rings & Snellen Chart
Phorias Test:

The phorias test measures parallelism of the ocular axes at physiological rest.
All phorias (heterophoria) translate as visual fatigue (asthenopia), notably in intense
conditions (screen work).

In time, a heterophoria, along with fatigue, can become diplopia (double vision). This
test is particularly interesting for screening latent heterophorias.

Fusion Test:

Purpose:
To measure binocular vision. Fusion is the ultimate phase in binocular vision. As for
phorias, fusion requires good visual acuity in each eye. In the case of phoria anomaly,
fusion can be obtained by stimulating the oculomotor muscles, which will correct the
phorias. Failure of this test signifies anatomical impossibility of convergence, which is found in extreme cases of strabismus.
Color test (Ishihara plate):

Purpose:
Chromatic deficiency screening.
Depth Perception Test:

Purpose:
To qualify stereoscopic acuity. This test can be useful, for example, for forklift operators,
requiring precise docking of loads, or in vehicle driving for appreciation of distances.
Macular Degeneration test:

Macular Degeneration Test (Amslet grid):
Purpose:
Screening for central visual field deficiency.
Visual Field (Horizontal + Vertical):

Horizontal visual field:
10 stimuli sweep the horizontal visual field to the right and left of the patient‘s eyes. Angles swept: 90°, 75°, 60°, 45°, 30°
Caution: This test should be performed in binocular vision.

Vertical visual field:
8 stimuli sweep the vertical visual field above and below the patient‘s eyes.
Angles swept:
30°, 22°, -22°, -30°
Purpose:
Measures aptitude for vehicle or engine driving. An appreciation of the amplitude of the horizontal and vertical visual field is required by certain laws (road rules).