Visual assessments are more than just an eye check, they’re an evaluation designed to ensure that employees meet the visual demands of their role. In industries where the likelihood of accidents, injuries and illness is high, eye tests ensure that workers can do their jobs safely and accurately. At MOHS we support organisations across the West Midlands in providing regular and consistent visual testing.
Why regular visual assessments matter
Testing frequency usually depends on the demands of the job and the age or health of the employee. Generally, routine assessments are recommended every two years, though high risk roles often benefit from annual testing. Regular testing is essential for detecting gradual changes in vision that employees themselves might not notice until a problem becomes apparent. Early detection enables employers to take action, such as providing staff with corrective eyewear or modifying their work tasks.
Visual assessment standards
Vision testing standards bring a level of consistency to assessments, ensuring that employees meet the same benchmarks regardless of their workplace. Some employers have their own visual standards (particularly for inspections). However in the absence of a clearly defined standard, at MOHS we use the PSL/44 standards for quality eye testing as detailed below.
Workplace visual standards:
| Reason for test | Test name | Standard |
| Driving (car, van, tug, remote crane, FLT Truck etc.) | Distance test (Snellen @ 3 meters | 6/12 in at least one eye if monocular vision (6/12 both eyes preferable) |
| Driving (Bus & HGV) | Distance test (Snellen @ 3 meters) | 6/7.5 in one and at least 6/60 in the other |
| Driving (All classes) | Peripheral Vision (Confrontation test | No significant deficits. Any problems should be referred to an optician for decision. |
| Near vision (Reading, office, VDU, & graphical work) | Near Vision (Sussex @ 40 cm) | Ideally N6 in both eyes – any problems referred to an optician. MOHS test is not VDU Regulations compliant. |
| Colour Vision | Ishihara | Normal result. Employees with deficits may be referred to an optician for confirmation and require adjustments or functional assessment of ability/safety. |
PSL/44 standards for quality eye testing:
| Reason for test | Test name | Standard |
| Near Vision PSL/44 | Sussex @ 40 cm | N4 both eyes open @ 40cm (J1) |
| Near Vision Tumbling “E” for poor readers | MOHS 11.11 Tumbling E chart | Correctly identify all optotypes from lines 1 to 9 inclusive |
| Colour Vision | Ishihara (24 plates) | No deficits |
| Grey Scale Test | Dr Kolbl test | Minimum 20 out of 25 |
| Distance Vision (Optional) | Snellen @ 3 meters | 6/9 (Not required for certification purposes) |
SABRe standard as per PSL/44 except for:
| Reason for test | Test name | Standard |
| Near Vision RR SABRe | Sussex @ 40 cm | N5 both eyes open @ 40cmm (J2) |
High risk industries
Visual assessments are particularly important in sectors where precise vision is non-negotiable. Manufacturing and construction, for example, involve equipment and procedures that require both sharp acuity and excellent depth perception. In transportation drivers rely on clear vision to keep themselves and others safe on the road. Healthcare professionals, whose work often involves precision tasks, also depend on good visual health to make accurate diagnoses and provide effective care. Office based roles, while less risky, also benefits from vision testing, as prolonged screen time can lead to eye strain and fatigue, reducing productivity over time.
The benefits of safeguarding employee eye health
A commitment to regular eye testing helps employers tackle more than just regulatory compliance – it’s a cornerstone of promoting employee wellness. Many eye health issues develop over time and can be managed if caught early. Regular assessments signal to employees that their health and wellbeing is a priority. Moreover, employees who are confident in their visual abilities are less likely to make errors or be involved in accidents. By prioritising eye health, companies create a work environment that is safer and more productive.
A clearer future with vision testing
Visual assessments play a vital role in supporting the health and safety of today’s workforce. At MOHS Workplace Health, we are dedicated to providing high quality, standards based assessments to protect workers’ vision and promote workplace wellbeing. Visual health, after all, isn’t just about seeing clearly; it’s about fostering a work environment where everyone can safely and confidently perform their best. To learn about our health surveillance and screening services, click the link below.