Short answer: Vision screening workplace safety checks ask a simple question: can this person see what the job needs them to see? The World Health Organization says uncorrected refractive error remains a leading cause of vision impairment in all countries, among adults and children, and that many of the consequences can be reduced by timely access to eye care.[1] For a security officer, the job's visual demands are specific: faces, plates, screens, movement and low light. A screening is not an eye examination. It tells you who needs one.
Book occupational health services when the role needs a workplace medical, not a GP visit.
A guard at a gate checks a driver's licence against the driver's face. Then he checks the plate against the booking. Then he looks at a monitor that shows the yard. All of it takes about forty seconds, and the officer does it again forty times in a shift.
None of those looks is dramatic. All of them depend on eyes that work well enough for the post. If they do not, nobody is likely to notice until something is missed.
Why this belongs on a safety agenda
Vision is the sense that security work leans on hardest, and the one employers tend to check least after the first day. The Department of Health's 2026 awareness calendar lists Eye Care Awareness Month from 23 September to 18 October and World Sight Day on 8 October.[2] Both have just passed. The calendar then lists Prevention of Injuries Month in December.[2] That makes the next few weeks a sensible time to look at what your team can see.
The WHO estimates that globally at least 2.2 billion people have a near or distance vision impairment, and that in at least 1 billion of those cases it could have been prevented or has yet to be addressed.[1] Those are global figures, not South African ones, and they say nothing about your team. They do show that a large share of vision problems are fixable and unaddressed.
What the job asks of the eyes
We are not quoting a regulation here. We are describing what an officer is asked to do, and you can test that description against your own site orders.
- Read and compare. Identity documents, access cards, vehicle plates, delivery notes and the occurrence book.
- Watch screens. CCTV monitors, alarm panels and radio displays, often for long periods.
- Judge movement and distance. Who is approaching, how fast, and from where.
- Work in poor light. Night patrols, car parks, and the dark side of a building.
- Drive. Many officers operate a response vehicle at some point in a shift.
Each of those has a different visual demand. Reading a plate is mostly about distance sight. Reading an occurrence book at 03:00 is about near sight. WHO notes that the main condition causing near vision impairment is presbyopia, an age-related change that affects many adults from midlife.[1] A twenty-two-year-old officer and a fifty-year-old officer may need different checks.
What a screening does and does not do
At Care Net, security officers are assessed for fitness for duty, hearing and vision against the demands of the post.[3] Our standard panels use the Snellen eye test for general medicals and the Keystone vision screen, which includes colour vision, for operator and electrician medicals.[4] A referral check-up is included in every medical and takes place at one of our clinics only.[4]
A screening test measures how clearly a person can see a standard chart or target. It can show that something is outside the expected range. It cannot say why. It does not detect every eye disease, and it does not replace an examination by an optometrist or an ophthalmologist.
That is why the sensible outcome of a failed screening is a referral, with a clear next step: get the eyes tested, fit glasses if needed, and return. In many cases the fix is a pair of glasses.
The cost of not looking
The cost of an unaddressed vision problem on a security post rarely arrives as one dramatic event. It shows up as a plate misread, a face not matched, a step missed in a dark car park, or an officer who struggles with the screen and says nothing.
WHO also notes that vision impairment can contribute to a higher risk of falls and fractures, particularly in older adults.[1] For an employer, the point is practical. A cheap check early is better than an incident review later.
The Occupational Health and Safety Act requires an employer to provide and maintain, as far as is reasonably practicable, a working environment that is safe and without risk to the health of employees.[5] Whether a given vision check is required for a given post depends on the post and on your risk assessment, and we will not claim a regulation says more than it does.
A short plan
- Write down the visual demands of each post. Gate, control room, patrol, response vehicle.
- Ask your practitioner what the medical covers. Distance, near, colour, night.
- Have a standard referral path. Who pays for an eye test, how long the officer has, what happens to the roster.
- Re-screen after a change. New duties, a new vehicle or new equipment.
- Keep it private. An eye result is health information. The employer needs the fitness outcome.
None of this slows a roster much. Most of the work is deciding, in advance, what a post needs from its people.
Questions people ask
What does vision screening check in the workplace?
It checks how clearly a worker can see a standard chart or target, and may include colour vision depending on the panel. It flags who needs a full eye examination. It does not diagnose eye disease.
Why does vision matter for security officers?
Officers read documents and plates, watch screens, judge movement and work in poor light. Each task depends on near or distance sight, so the post's demands should guide what is checked.
What does WHO say about uncorrected refractive error?
WHO says uncorrected refractive error remains a leading cause of vision impairment in all countries among both children and adults, and that many consequences can be mitigated by timely access to quality eye care.
What happens if an officer does not pass a vision screening?
The usual next step is a referral for a full eye test and correction such as glasses if needed. The employer should agree the referral path and what it means for the roster in advance.
Sources
Accessed on 09/10/2026.
This article is general information for employers and is not legal or medical advice. Read the regulations for the full requirements and speak to a qualified practitioner about individual health concerns.
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