7 Necessary Functions of a General Vision Screener

Routine vision screening is a great way to check on the health of your eyes. It is an eye exam that is used to spot potential vision problems in a patient. A vision screening device is instrumental in detecting vision issues, whether in children or adults. Not all vision screeners are created equal, and there are various types of vision screeners on the market. Depisteo’s vision screener is a notch above the rest when it comes to performance and efficiency. Continue reading to learn about the necessary functions of a general vision screener. 


Depisteo Vision Screener

Depisteo is a leader in the medical screening device industry, and their vision screening device is one of the products that set them apart from the competition. Their vision screening device combines optical, electronic and advanced technology and is used to perform a wide range of eye tests in patients, not just visual acuity measurements. This complete device is the best vision screener for your needs, unlike others on the market that are limited in the types of tests they can perform, the digital output they can deliver and the speed at which tests can be done. 

Depisteo’s vision screener is adaptable to your needs, fast and efficient performing a complete visual test in 2-5 minutes, computerized and can allow for customized occupation-specific test sequences. The VT1 Vision Screener by Depisteo delivers high-performance and can meet your vision screening needs with its customizable, adaptable features. It’s not only a great option for regular vision screening, but also for occupational therapy treatment and training applications. 


Necessary General Vision Screener Functions

When it comes to eye health and vision screening, accuracy and consistency are essential to effective screening, findings, and recommendations. Every vision screener should have these seven essential functions:

1. Acuity: Acuity test is an eye exam involving checking how well you see details by reading a chart of numbers and letters of different sizes from a distance to determine the accuracy of a patient’s vision


2. Ambler: The Ambler grid chart test is used to detect vision problems associated with damage to the macula (the central part of the retina) or the optic nerve to the presence of macular degeneration, along with other eye diseases with the potential to lead to vision loss.


3. Refractive Errors: This vision test determines whether or not the shape of your eye bend light correctly. It checks for common vision problems, like astigmatism, nearsightedness, and farsightedness. It also helps to determine if a patient needs glasses or contact lenses.


4. Depth Perception: Depth perception test or a 3D imaging test is used to assess whether or not a patient has binocular vision, also known as stereopsis and rule out possible “lazy eye” as a vision problem. 


5. Colors: A color blind test is used to check if a patient has a color vision deficiency or color blindness. It determines if a patient has the inability to distinguish between particular colors.



6. Contrast: A contrast sensitivity test checks a patient’s ability to visualize light and dark contrast. It is useful in diagnosing cataracts.


7. Complete Visual Field– This eye exam that is helpful in detecting dysfunction in the central and peripheral vision, that can lead to the development of medical conditions, like glaucoma, stroke, pituitary disease, brain tumors or other neurological conditions.


A general vision screener is a vital tool in identifying undetected vision problems and allow the opportunity for early treatment. Depisteo’s vision screener is high-performing, adaptable and efficient. A general vision screen should feature certain functions, including acuity, ambler, reflective errors, colors, contrasts, depth perception, and complete visual field.