Vision Screening in industry has conventionally been carried out using various charts and cards or a vision screening instrument such as the Titmus or Keystone. The Thomson Occupational Screener software is set to change all that!
The software runs on a standard PC or Laptop and performs a wide range of vision tests including: Distance LogMAR accuity, Distance Snellen acuity, Number plate test, Distance binocular vision, Near visual acuity, Near binocular vision, DSE vision, Stereopsis, Colour vision, Visual fields and Amsler. The software is also capable of creating on-screen questionnaires to gather information about symptoms and history (and virtually anything else).
The tests may be run individually or grouped into a protocol for screening specific groups of people. A pass/ faill criterion can be set for each test allowing the screener to rapidly identify those inviduals who fail to meet a minimum standard.
The software includes a powerful database and report generator to manage much of the back-office administration associated with screening.
Vision Screening in industry has conventionally been carried out using various charts and cards or a vision screening instrument such as the Titmus or Keystone. The Thomson Occupational Screener software is set to change all that!
The software runs on a standard PC or Laptop and performs a wide range of vision tests including: Distance LogMAR accuity, Distance Snellen acuity, Number plate test, Distance binocular vision, Near visual acuity, Near binocular vision, DSE vision, Stereopsis, Colour vision, Visual fields and Amsler. The software is also capable of creating on-screen questionnaires to gather information about symptoms and history (and virtually anything else).
The tests may be run individually or grouped into a protocol for screening specific groups of people. A pass/ faill criterion can be set for each test allowing the screener to rapidly identify those inviduals who fail to meet a minimum standard.
The software includes a powerful database and report generator to manage much of the back-office administration associated with screening.
The Thomson Occupational Screener is designed to be used by Occupational Nurses and doctors, Optometrists or anybody else responsible for vision screening in an industrial or corporate setting.
Fed up with lugging a vision screener around? Fed up with having to manually record results and prepare reports?
The Thomson Occupational Screener includes most of the vision tests that you are likely to need and allows you to set up testing protocols for different groups of workers depending on the relevant vision standards.
Simply run through the protocol and the software will assess if they meet the specified standard and create a detailed report. Upload a pdf of the report to any other software you may be using to manage occupational health.
Looking to expand your practice. Why not consider offering a vision screening service to local businesses. The Thomson Occupational Screener can be operated by non-clinicians and provides a cost-effective and efficient way of differntiating your practice.
The Thomson Occupational Screener allows the examiner to present a single test (for example Snellen Acuity) and record the result. Multiple tests can then be selected and included on a single report.
Alternatively, any combination of tests can be grouped together to form a protocol.
The Thomson Occupational Screener allows any combination of tests to be grouped together to form a protocol. Furthermore, each test can be given its own pass/ fail criterion.
This allows the examiner to design protocols for specific groups of employees, for example DSE users, fork lift truck operators, HGV drivers etc. The results of all the tests in the protocol are included in a single report.
The Thomson Occupational Screener includes a dashboard allowing the examiner to view summary statistics relating to the tests that have been conducted.
LogMAR acuity has become the “gold standard” way of measuring visual acuity and is rapidly replacing Snellen acuity in most clinical scenarios. The Thomson Occupational Screener fully conforms to LogMAR standards.
During the test, the employee stands at a pre-determined distance (2.5-6 metres) from the computer screen and is asked to read the letters on the screen. The letters are carefully scaled to take account of the screen size and the viewing distance. The examiner has to simply record the number of letters read correctly. The letter size is then varied according to a staircase algorithm to determine the exact LogMAR acuity.
While LogMAR acuity is becoming the preferred method for measuring visual acuity, Snellen acuity is still required for a number of occupational standards.
The Thomson Occupational Screener will reproduce a standard Snellen chart on a computer screen (scaled to take account of screen size and viewing distance (2.5-6 metres)).
The employee is required to simply read down the Snellen chart in the normal way until they can no longer resolve the letters. The examiner can randomise the letters to avoid the patient simply memorising them.
The examiner records the Snellen acuity and any other notes relating to the test.
In the UK, drivers must be able to read (with glasses or contact lenses, if necessary) a car number plate made after 1 September 2001 from 20 metres.
Drivers must also meet the minimum eyesight standard for driving by having a visual acuity of at least 6/12 measured on the Snellen scale (with glasses or contact lenses, if necessary) using both eyes together. Additional standards apply for lorry and bus drivers.
The Occupational Screener includes a Driving Vision test which simulates the first part of this standard. An exact replica of a number plate (suitably scaled for screen size and viewing distance (2.5-6 metres) is displayed on the screen. The examiner simply records the number of letters/numbers correctly read.
The Thomson Occupational Screener includes a fixation disparity test to assess distance binocular vision. Fixation disparity has been shown to be an excellent indicator of the presence of significant problems with binocular vision.
The employee views the screen from between 2.5 and 6m through red/green glasses (so that one eye sees the red marker and the other sees the blue marker). They are then required to report if they can see both lines and if they are in a straight line.
The measurement of Near Visual Acuity requires a chart with very small text. The current generation of computer screens is unable to accurately reproduce text that is small enough.
Therefore, for this test, the employee looks at the printed near chart provided while the results of the test are entered into the software so that the results can be included in the analysis and the report.
Assessing the vision of those working with DSE has become an important part of the role of many Occupational Nurses.
The Thomson Occupational Screener presents text of decreasing size on the computer screen. The employee is required to rate the ease/comfort with which they can read the text and the software calculates an overall score for the test.
Because the test conditions closely match the employees’ normal working conditions, the results have been shown to be an excellent indicator of DSE-related eye problems.
The Thomson Occupational Screener includes a fixation disparity test to assess near binocular vision (a scaled down version of the test for Distance Binocular Vision. Fixation disparity has been shown to be an excellent indicator of the presence of significant problems with binocular vision.
The employee views the screen from their normal reading distance through red/green glasses (so that one eye sees the red marker and the other sees the blue marker). They are then required to report if they can see both lines and if they are in a straight line.
The Thomson Occupational Screener uses random dot stereograms to assess stereopsis (depth perception).
The employee looks at four patterns on the screen through red/green glasses. If the employee has stereopsis, a shape will be seen to stand out from one of the patterns. If the shape is identified, the task becomes more difficult and the process repeated to estimate the standard of stereopsis.
Approximately 8% of males and 0.5% of females have a colour vision deficiency. This means that they have difficulty differentiating between certain combinations of colours. As colour is used extensively in the workplace, many occupational standards require a test of colour vision.
Colour vision testing requires very accurate reproduction of colours which makes it difficult to perform a colour vision test on a normal computer screen. Therefore, for this test, the client looks at a standard printed Ishihara book while the results of the test are entered into the software so that the results can be included in the analysis and the report.
Approximately 8% of males and 0.5% of females have a colour vision deficiency. This means that they have difficulty differentiating between certain combinations of colours. As colour is used extensively in the workplace, many occupational standards require a test of colour vision.
Colour vision testing requires very accurate reproduction of colours which makes it difficult to perform a colour vision test on a normal computer screen. Therefore, for this test, the client looks at a standard printed City University Colour Vision test book while the results of the test are entered into the software so that the results can be included in the analysis and the report.
The Thomson Occupational Screener includes a powerful multiple-stimulus supra-threshold visual fields test.
The employee looks at a red cross in the centre of the screen and reports the number of “dots” that they see. The dots appear in patterns of 2,3 or 4 dots in different parts of the screen and are flashed on for approximately 100msecs.
In order to extend the area of the field that can be tested, the red cross is moved to the four corners of the screen at various stages during the test.
If the employee’s response is incorrect (e.g. they report that they see 3 dots when 4 were presented), the dots are presented individually to identify the dot(s) that was/were not seen.
NOTE: This test is designed to identify significant field defects and should not be seen as an alternative to a full visual fields test conducted by an Optometrist or Ophthalmologist.
The Amsler test provides a quick test of an employee’s central visual fields.
NOTE: This test is designed to identify significant field defects and should not be seen as an alternative to a full visual fields test conducted by an Optometrist or Ophthalmologist.
The employee looks at a grid pattern on the screen and is asked to report if any parts of the grid appear to be faded and if all lines appear to be straight and regular.
The Thomson Occupational Screener includes a powerful utility for designing and presenting questionnaires. The results of the questionnaire may then be included in a report with colour coding providing a quick way of identifying any responses which may require further action.
The Occupational Screener is available for a monthly subscription of £32/month (£345/year)+VAT (minimum term 6 months). This includes initial installation and training, all updates/upgrades and support.
Discounts are available for multiple licences or annual payments in advance.
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