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The NHS in England: help with health costs

Free NHS sight tests and optical vouchers

This section explains when patients are entitled to a free NHS sight test or an optical voucher to help reduce the cost of glasses or contact lenses.

If you're not eligible for NHS-funded sight tests or optical vouchers, you'll have to cover the costs yourself.

The NHS Low Income Scheme (LIS) may provide partial help with the cost of a sight test, glasses, or contact lenses for those who don't qualify for full help but still have a low income. This means you may have to pay a contribution towards the cost of the sight test or the value of your optical voucher, or both. 


If you have questions about help with health costs, join the Help with health costs team on Facebook, where the NHS Business Services Authority (NHS BSA) will respond to your queries Monday to Friday, 8am to 6pm.

If you wrongly make a claim for an NHS-funded sight test or optical voucher, you may be sent a penalty charge notice. You would have to pay the cost of the sight test and the value of the voucher charge, plus a penalty charge of up to £100. You may also be prosecuted for an offence that can lead to a criminal record.

For more information, see Paying NHS charges.

Who's entitled to a free NHS sight test or optical voucher? 

If one or more of the criteria listed below applies to you, you'll be entitled to a free NHS sight test.

TipA sight test is also free if the test is carried out through a hospital eye department, or at the request of a hospital, as part of the management of your eye condition.


You're entitled if:

  • you're aged 60 or over
  • you're registered blind or partially sighted
  • you've been diagnosed with diabetes or glaucoma
  • you're aged 40 or over and have a close relative (parent, sibling or child) with a history of glaucoma
  • you've been advised by an ophthalmologist that you're at risk of glaucoma

You also qualify for a free NHS sight test and are eligible for an optical voucher if you're:

  • aged under 16, or under 19 and in qualifying full-time education
  • eligible for an NHS complex lens voucher – see below
  • a prisoner on leave from prison

If you or your partner – including civil partner – receive, or you're under the age of 20 and the dependant of someone receiving:

  • Income Support or Income-based Jobseeker's Allowance (not contribution based)
  • Pension Credit Guarantee Credit
  • Income-based Employment and Support Allowance
  • Universal Credit and meet the criteria

If you're entitled to or named on:

  • a valid NHS tax credit exemption certificate – if you don't have a certificate, you can show your award notice; you qualify if you get Child Tax Credits, Working Tax Credits with a disability element (or both), and have income for tax credit purposes of £15,276 or less
  • a valid NHS certificate for full help with health costs (HC2)

People named on an NHS certificate for partial help with health costs (HC3) may also get help.

NHS complex lens vouchers

To be eligible, your lenses need to be either -10/+10 dioptres or more, or prism controlled bifocal lenses. 

Complex lens vouchers are a contribution towards the cost of these lenses – currently £14.60 for single vision lenses and £37.40 for bifocal lenses.

The vouchers are only available to those who meet the clinical criteria and are not eligible for one of the main optical vouchers.

Mobile sight tests

A mobile sight test is where an optometrist comes to visit you in your own home or at a day centre.

If you're eligible for a free NHS sight test, you may also be entitled to a mobile sight test. If you meet one of the criteria listed above, you may have your sight test:

  • at home – if you're unable to leave home unaccompanied because of physical or mental illness or disability
  • at a residential or care home – if you're a resident and unable to leave the home unaccompanied because of physical or mental illness or disability
  • at a day centre – if you cannot get a sight test at an optician's practice because of physical or mental illness or disability, or difficulties communicating your health needs unaided

How can I claim a refund?

Sight test fees

If you have paid for a sight test but think you may qualify for an NHS-funded sight test, or you're about to have a test and you are not sure if you qualify, ask the optometrist for a receipt that shows you paid for the test and the date of payment.

Complete an HC5 claim form for optical charges (PDF, 398kb).

Glasses or contact lenses

If you have already used a voucher towards the cost of your glasses or lenses, you cannot get a refund unless it was a complex lens voucher. Nor can you claim a refund of the difference between the voucher value and the actual cost of your glasses or lenses, even if they cost more than the voucher value.

If you paid for glasses or contact lenses and think you may have qualified for a voucher, you can claim a refund. You'll need a receipt for the glasses or contact lenses you've bought, including the amount you've paid and the date of payment. 

Complete an HC5 claim form for optical charges (PDF, 398kb). Make sure you enclose your optical prescription and the receipt with your HC5 when you send it off.  The maximum refund you can get will be the voucher value that matches your prescription.

Lost or damaged glasses or contact lenses

If your glasses or contact lenses have been lost or damaged and you pay for replacement or repairs, you will only be considered for a refund if you're entitled to a voucher.

Important numbers

Dental services helpline – 0300 330 1348

NHS Low Income Scheme helpline – 0300 330 1343

Prescription services helpline – 0300 330 1349

Queries about medical exemption certificates – 0300 330 1341

Queries about prescription prepayment certificates (PPCs) – 0300 330 1341

Queries about tax credit certificates – 0300 330 1347

Call 0300 123 0849 to order a paper copy of the HC12, HC5 and HC1 (SC) forms

Call 0300 330 1343 for all other queries

Page last reviewed: 01/04/2017

Next review due: 01/04/2020

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