Getting Glasses in the UK: Eye Tests, Prescriptions, Online Shops and Insurance (2026)
In the UK you can get an eye test at any high-street optician for around £25, take home your free paper prescription, and order glasses online for a fraction of high-street prices. If you belong to an NHS-eligible group, the eye test is free and you may also get an optical voucher toward glasses. This guide covers each step, plus contact lenses, insurance and the spare-pair strategy.
1. Getting an eye test and your prescription
Book a sight test at a high-street chain — Specsavers, Boots Opticians or Vision Express. A standard test costs about £24–30; Specsavers typically charges £25 and runs occasional £10 promotions. The test takes 20–30 minutes, and the optician must give you a paper copy of your glasses prescription for free if you ask.
Free NHS eye tests are available to: under-16s; 16–18-year-olds in full-time education; people aged 60 or over; people with diabetes or glaucoma; people aged 40 or over with an immediate family member who has glaucoma; and people receiving certain benefits such as Universal Credit (income thresholds apply).
A glasses prescription is usually accepted by retailers for about 2 years after the test. A contact lens prescription is separate: it needs its own fitting appointment and is usually valid for 1 year. Online contact lens sellers are legally required to verify your prescription before dispatching.
2. Frames and lenses: what the options mean
Single-vision lenses correct one distance (near or far); progressive lenses (varifocals) blend distance, intermediate and near correction into one lens with no visible line. Blue-light coating filters part of the blue spectrum from screens — the evidence for eye-health benefits is mixed, so treat it as a comfort add-on rather than a medical necessity. Photochromic lenses darken automatically in sunlight, handy if you dislike switching between glasses and sunglasses.
If your prescription is strong (roughly beyond ±4.00 dioptres), ask about high-index lenses (1.67 or 1.74): noticeably thinner and lighter, but pricier. Frame materials: acetate (light, colourful, easily adjusted), titanium (very light, strong, often hypoallergenic) and memory metal (flexible and hard to snap — a good pick for children and sport).
3. Contact lenses: daily, monthly and toric
Daily disposables are the most convenient and hygienic option; monthly lenses cost less per day but need daily cleaning and a case. If you have astigmatism you need toric lenses, which are made with a different geometry and come in both daily and monthly versions.
You cannot buy contact lenses in the UK without a valid contact lens prescription from a fitting — online shops such as Feel Good Contacts will ask you to upload it or will contact your optician to verify. The same rule applies to cosmetic coloured lenses with no power.
4. Where to buy: high-street chains vs online
High-street: Specsavers is the largest chain; Boots Opticians and Vision Express are the other big names. All three accept NHS optical vouchers. Online: Glasses Direct and SelectSpecs are the established UK names (names only).
Online ordering: enter your SPH, CYL, AXIS and ADD values from the prescription, pick a frame, and supply your pupillary distance (PD) in millimetres. UK opticians do not always print PD on the prescription, so you may need to measure it yourself — many online shops post a free PD ruler on request or offer an app tool. Online glasses usually take several days to about two weeks to arrive; return windows are typically 30 days or more, but check the policy before ordering.
5. Small accessories that save your glasses
Anti-slip nose pads stop glasses sliding down in summer; a glasses chain keeps them around your neck when not worn; a sport strap keeps them on during running or cycling; an anti-fog cloth helps when you walk from cold streets into warm shops. All of these are sold on Amazon.co.uk — accessories only; it does not sell prescription glasses (mention only, no links).
6. Insurance and NHS help with the cost
If you qualify for NHS help, the optical voucher scheme pays a set amount toward your glasses. 2026 rates: £42.40 for prescriptions within ±6.00 dioptres (band A), £64.26 for 6.00–9.99 (band B), and £94.14 for ±10.00 and above (band C). High-street opticians and independent practices accept vouchers; most online shops do not — compare the final out-of-pocket price before deciding, since online prices often already undercut the voucher.
Children under 16 automatically qualify for both the free test and a voucher, which is why back-to-school eye tests are a common routine. Private health insurance in the UK rarely covers routine glasses; employer cash plans sometimes include a small optical benefit, so check your policy.
7. Why you need a spare pair (and how to get one cheap)
Glasses break, get sat on, or disappear into a bag at the worst possible moment. A spare pair turns a lost pair into an inconvenience instead of an emergency — especially if you cannot function without them. The cheapest route is an online order: use your free paper prescription, choose a basic frame and a standard lens, and a functional spare costs little more than a takeaway dinner. Keep it somewhere fixed — a desk drawer or your travel bag — so it is actually there when you need it.
Frequently asked questions
Am I eligible for a free NHS eye test?
If you are under 16, 16–18 in full-time education, 60 or over, have diabetes or glaucoma, are 40+ with a close relative who has glaucoma, or receive qualifying benefits such as Universal Credit, yes. Otherwise expect to pay around £24–30 at a high-street optician.
Can I use my UK prescription on cheap overseas sites like Zenni?
Yes. A UK prescription follows the universal format (SPH / CYL / AXIS / ADD), so any online retailer worldwide can make lenses from it. The one extra number you need is your pupillary distance (PD) — measure it yourself, because UK opticians do not always include it on the prescription.
Do online shops accept NHS optical vouchers?
Most do not. Vouchers are accepted at high-street opticians and independent practices; online retailers generally sell at prices that already undercut the voucher, so compare the final price before deciding where to buy.
Do I need a prescription to buy contact lenses online in the UK?
Yes. Contact lenses are regulated in the UK: you need a current contact lens prescription from a fitting, and the seller must verify it before dispatching. This applies to plain cosmetic lenses with no power too.
How do I measure my PD for online glasses?
Stand about 20 cm from a mirror, hold a millimetre ruler against your brow, close one eye at a time and note the distance between the centres of your pupils. Measure a few times and average the results; many online shops will post you a free PD ruler on request.
Sources
- NHS, Eye tests and glasses: https://www.nhs.uk/conditions/eye-tests-and-glasses/
- Specsavers, Eye tests: https://www.specsavers.co.uk
- Glasses Direct: https://www.glassesdirect.co.uk
- Feel Good Contacts: https://www.feelgoodcontacts.com