7 Functions That Every Vision Screener Should Have

What Is Vision Screening?

Vision screening is a routine eye exam that can help to assess whether any eye problems are present. The purpose of vision screening is to prevent, diagnose, and treat any eye conditions.


How Is Vision Screening Performed?

Vision screening is a process that many establishments including schools and driving test centers, perform. It involves a series of tests executed by the examiner with the use of selected eye tools. The tests may vary depending on the person and their history.

Some of the tests include:

Corneal Light Reflex Testing

Cover Testing


Visual Acuity Exams

With a vision screener, these tests occur in one comfortable setting. There is no fumbling around with different equipment or tools. A vision screener carries all the functions and capabilities necessary to administer each vision screening test mentioned above.


Vision Screener Functions

While there are many degrees of screenings available, consistency and accuracy are essential for eye health. For this reason, there are some essential functions that every vision screener should have.

1. Acuity- A test that involves reading a chart of numbers and letters of varying sizes to determine the accuracy of vision.

2. Ambler- A grid chart that can help to establish the presence of macular degeneration and other eye diseases that could potentially cause vision loss.

3. Refractive Errors- This test checks common vision problems such as astigmatism, nearsightedness, and farsightedness. This test can help to determine whether glasses/contact lenses are needed.

4. Depth Perception- a 3D imaging test to assess whether the binocular vision is efficient and to rule out possible “lazy eye.”

5. Colors- Checks for color blindness, which is the inability to distinguish between certain colors.

6. Contrast- Checks for the ability to recognize light and dark contrast, this test can be particularly helpful in diagnosing cataracts.

7. Complete Visual Field- An eye examination that can detect dysfunction in central and peripheral vision which may lead to medical conditions such as glaucoma, stroke, pituitary disease, brain tumors or other neurological issues.

Vision Screener


Are Vision Screenings Accurate?

Vision screening can assist in identifying visual impairments to decide whether a referral to a specialist is required. However, screenings and vision tester equipment vary greatly, and many checks must be made for the screening to be a truly effective method of eyesight assessment.


VT1 Vision Screener By Depisteo

The VT1 Vision Screener is a comprehensive screening device that provides a thorough eye screening test and produces detailed electronic reports in under five minutes.

It is simple to use, and you do not have to be an optometrist to operate the device. It has a user-friendly environment and can perform extensive screening for the main visual problems. Unlike with a regular vision screening test, the VT1 Vision Screener makes it possible to conduct all the tests mentioned above in one easy setting.

The VT1 Vision Screener is an all-in-one handheld machine and an innovative asset that would provide significant benefit to eye screenings.


Benefits of the VT1 Vision Screener:

  • A broad range of tests
  • Screens for the primary visual problems in under five minutes
  • Tests are profile specific and relevant to the patient
  • Ability to invoice certain Medicare-covered tests


Regular vision screenings are a great way to prevent serious eye problems and to assess vision health. The VT1 Vision screener by Depisteo is a comprehensive screening device that could save your business time and money. The device can be adapted to suit the user to provide a vision screener for opticians, or for public and private establishments unrelated to optometry. Tests are profile specific and relevant to the patient. Contact Depisteo to find out more about our vision testing tools.


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