DSE Assessment UK 2026: Chair Requirements, Eye Test Rules & What Assessors Look For

Updated: April 2026 • Based on UK Law

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What Is a DSE Assessment?

A DSE assessment is a workplace risk assessment focused on display screen equipment — computers, laptops, tablets, and monitors. Required under the Health and Safety (Display Screen Equipment) Regulations 1992, it evaluates workstation setup, posture, lighting, and work patterns to reduce the risk of musculoskeletal disorders and eye strain.

This guide covers UK DSE law, what an assessor looks for, chair requirements, eye test obligations, costs, and how often to reassess.

If your employees use a screen for more than an hour a day, you’re legally required to assess their workstation.

That’s not guidance — it’s a direct obligation under the DSE Regulations.

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What Is Display Screen Equipment?

Display screen equipment (DSE) means any device with a screen used for work.

That includes desktop monitors, laptops, tablets, touchscreens, and smartphones — if they’re used as a significant part of the job.

A DSE workstation isn’t just the screen. It includes the keyboard, mouse, desk, chair, document holder, footrest, and the immediate working environment — lighting, temperature, and noise.

The main health risks from DSE work are:

- Musculoskeletal disorders — back pain, neck pain, shoulder pain, and upper limb disorders (sometimes called RSI)

- Visual fatigue — eye strain, headaches, dry eyes, blurred vision

- Mental stress — from poorly designed software, excessive workload, or lack of control over work patterns

These are preventable — and preventing them is what a DSE assessment is for.

What Is the DSE Law in the UK?

The primary legislation is the Health and Safety (Display Screen Equipment) Regulations 1992, as amended by the Health and Safety (Miscellaneous Amendments) Regulations 2002.

These sit under the Health and Safety at Work Act 1974 and the Management of Health and Safety at Work Regulations 1999.

The DSE Regulations require employers to:

- Assess workstations used by DSE “users” and reduce any risks identified

- Ensure workstations meet minimum requirements set out in the Schedule to the Regulations

- Plan work activities so users get regular breaks or changes of activity

- Provide eye tests on request and pay for them

- Pay for basic glasses if the eye test shows they are needed specifically for DSE work

- Provide information and training on DSE risks and how to set up workstations safely

The 2002 amendments extended coverage to include portable DSE — laptops, tablets, and other mobile devices — and placed stronger emphasis on ergonomic requirements for mice and pointing devices.

Home and hybrid workers are covered too. If an employee uses DSE at home as a significant part of their job, the employer must assess their home workstation — even if they don’t directly control the environment.

Does Display Screen Equipment Need to Be Assessed?

Yes — if the person using it qualifies as a DSE “user” under the Regulations.

A DSE user is someone who:

- Uses DSE as a significant part of their normal work (typically daily)

- Uses it continuously for an hour or more at a time

- Has limited control over the pattern of that work

This covers most office-based, administrative, and desk-based roles.

It also covers remote workers, hybrid workers, and anyone using a laptop or tablet as their primary work tool — even if they work from home.

Part-time staff, temporary workers, and agency workers are all included if they meet the usage criteria.

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What Does a DSE Assessor Look For?

A DSE assessment evaluates the entire workstation — not just the screen.

Screen and display:

- Is the screen at arm’s length from the user?

- Is the top of the screen at or just below eye level?

- Can brightness and contrast be adjusted?

- Is the screen free from glare and reflections?

Keyboard and mouse:

- Is the keyboard positioned so the user’s forearms are roughly horizontal?

- Is there space in front of the keyboard to rest the wrists?

- Is the mouse positioned close to the keyboard at the same height?

Chair and posture:

- Does the chair have adjustable seat height, backrest height, and backrest tilt?

- Are the user’s feet flat on the floor (or on a footrest)?

- Is the user’s back supported by the backrest?

Desk and workspace:

- Is there enough desk space to arrange equipment comfortably?

- Is the desk surface non-reflective?

- Is there a document holder if the user works from paper documents?

Environment:

- Is the lighting adequate and free from glare on the screen?

- Is the temperature comfortable?

- Is the noise level acceptable?

Work patterns:

- Does the user take regular breaks from the screen?

- Is there variety in the work to avoid prolonged static posture?

- Has the user been trained on how to adjust their workstation?

What Are the DSE Assessment Chair Requirements?

The Schedule to the DSE Regulations sets out minimum requirements for seating.

The chair must be:

- Stable — typically a five-castor base

- Adjustable in height — so the user’s feet can rest flat on the floor with thighs roughly horizontal

- Adjustable backrest — both height and tilt, providing adequate lumbar support

- Free to move — the user should be able to swivel and reach items without straining

A footrest must be provided if the user cannot rest their feet flat on the floor after the chair has been adjusted.

Armrests are not required by the Regulations. If present, they must not prevent the user from sitting close enough to the desk or interfere with comfortable keyboard use.

The chair is the most common failure point in DSE assessments. A non-adjustable chair, a broken gas lift, or a missing backrest adjustment immediately puts you in breach of the minimum requirements.

Do Employers Have to Provide Eye Tests for DSE Users?

Yes. Under Regulation 5, employers must provide a full eye and eyesight test to any DSE user who requests one.

The employer must pay for the test.

The test must be carried out by a registered optometrist or doctor — not a simple vision screening.

If the test shows the employee needs glasses specifically for DSE work — prescribed for the distance the screen is viewed at — the employer must pay for basic corrective spectacles.

The employer is not required to pay for designer frames, upgrades, or glasses needed for general use. Only the basic DSE-specific prescription.

Eye tests should be offered:

- When an employee first becomes a DSE user

- At regular intervals — typically every one to two years

- When the employee reports visual difficulties related to DSE work

- When workstation changes occur that could affect eye health

A standard eye test typically costs £20–£30. Basic DSE spectacles start from around £50–£80.

There is no benefit-in-kind tax charge when eye tests and DSE spectacles are provided under the Regulations.

How Often Should a DSE Assessment Be Carried Out?

The Regulations do not set a fixed review period.

However, Regulation 2 requires that assessments are reviewed if there is reason to believe they are no longer valid, or if there has been a significant change.

In practice, carry out or review a DSE assessment:

- When a new employee starts — as part of onboarding

- When a workstation changes — new desk, new chair, new monitor, office move

- When an employee moves to home or hybrid working

- When an employee reports discomfort — pain, stiffness, headaches, eye strain

- At least annually — widely accepted as the minimum standard for ongoing compliance

A DSE assessment is not a one-off exercise. Workstations change. People change. Equipment wears out.

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Frequently Asked Questions

How much does a DSE assessment cost?

If you do it in-house using a self-assessment checklist or template, the cost is minimal — just the time involved.

Hiring an external DSE assessor or ergonomics consultant typically costs £50–£150 per workstation, depending on complexity and location.

Can employees do their own DSE assessment?

Yes. The HSE supports employee self-assessment as a valid approach, provided the employer reviews the results and acts on any issues identified.

Many organisations use an online or paper self-assessment form. The key is that someone competent reviews the findings and ensures any problems are resolved.

Do DSE Regulations apply to laptops and tablets?

Yes — since the 2002 amendments, portable DSE is fully covered.

Laptops carry additional risks due to the fixed screen-keyboard relationship, which often forces poor posture. The HSE recommends providing a separate keyboard, mouse, and laptop riser for prolonged laptop use.

What breaks should DSE users take?

The Regulations require employers to plan work so that DSE users get regular breaks or changes of activity.

There is no legally prescribed break frequency. The HSE recommends short, frequent breaks rather than occasional longer ones — typically 5–10 minutes away from the screen every hour.

What happens if I don’t do a DSE assessment?

Failure to carry out DSE assessments is a breach of the DSE Regulations and the Management of Health and Safety at Work Regulations 1999.

The HSE can issue improvement notices, prohibition notices, or prosecute. Employees who develop musculoskeletal disorders or eye problems linked to DSE work can also bring civil claims for compensation.

The Truth About “Free” Legal Template Sites (What You’re Really Signing Up For)

Most websites offering a “free legal template” follow the same pattern:

- You click because it’s advertised as free

- You spend 10–15 minutes answering questions

- At the very end, you must create an account or start a “free trial”

- Your card is required upfront

- The subscription auto-renews at £29–£39 per month

This isn’t a free template – it’s a subscription service. Many people only realise after being charged £300–£400 over the year.

Why These “Free” Templates Are a Legal Risk

- Outdated wording: not aligned with current UK law

- Missing mandatory clauses: required for legal validity

- No compliance guidance: leaving users without legal context

- No structured checklist: no way to verify the document works

- Not kept updated: often unchanged when legislation changes

One incorrect clause can weaken or invalidate the entire document.

Hidden Problem: Many “Free Template” Sites Aren’t Even UK-Based

Another major issue is that many free or auto-subscription template sites operate outside the UK and use documents originally drafted for the US legal system. These are then loosely adapted for “international use,” which creates serious problems: