You qualify for a free NHS-funded sight test if: -you're aged under 16 -you're aged 16, 17 or 18 and are in full-time education -you're aged 60 or over -you're registered as partially sighted (sight impaired) or blind (severely sight impaired) -you've been diagnosed with diabetes or glaucoma -you're 40 or over and your mother, father, brother, sister, son or daughter has been diagnosed with glaucoma -you've been advised by an eye doctor (ophthalmologist) that you're at risk of glaucoma -you're a prisoner on leave from prison -you're eligible for an NHS complex lens voucher – your optometrist (optician) can advise you about your entitlement You're also entitled to a free NHS sight test if you: -receive Income Support -receive Income-based Jobseeker's Allowance (not contribution-based) -receive Pension Credit Guarantee Credit -receive income-based Employment and Support Allowance -are awarded Universal Credit and meet the criteria on earnings limit -are entitled to, or named on, a valid NHS tax credit exemption certificate -you are named on a valid NHS certificate for full help with health costs (HC2)