Eye Test - What You
Need to Know
Did you know that an eye test does more than just check your vision? An eye test is a vital health check that can detect early signs of eye conditions and even general health issues. Here’s everything you need to know.
What Happens During an Eye Test?
During an eye test, a qualified optometrist will:
-
Check your vision using various lenses and charts.
-
Examine the overall health of your eyes.
-
Use a slit lamp, high-powered lens, and light to see in detail the lens, anterior chamber, vitreous, and retina.
-
Conduct additional tests such as peripheral fields tests, OCT (Optical Coherence Tomography), and glaucoma checks.
These tests allow your optometrist to detect:
Some conditions, if left untreated, could result in permanent vision loss. About half of sight loss in the UK is preventable, making regular eye tests essential.
How Often Should You Have an Eye Test?
-
Most people should have an eye test every 2 years.
-
If you have a family history of glaucoma, or your optometrist wants to monitor your vision closely, you may need tests annually.
-
If you notice any changes in your vision, book an eye test sooner rather than waiting.
How Long Does an Eye Test Take?
A standard eye test usually takes 20–45 minutes, depending on additional health checks such as OCT or visual field tests.
How Much Is an Eye Test?
-
NHS Eye Test: Usually free if you meet certain criteria.
-
Private Eye Test: Costs vary, typically between £20–£50.
Who Is Entitled to a Free Eye Test?
You may qualify for a free NHS eye test if you are:
-
Under 16, or 16–18 in full-time education
-
Over 60
-
Aged 40 or over with a family history of glaucoma
-
Diagnosed with glaucoma or diabetes
-
Registered blind or partially sighted
-
Receiving certain benefits, such as:
-
Income Support
-
Income-based Jobseeker’s Allowance
-
Pension Credit Guarantee Credit
-
ESA
-
Tax Credit Exemption Certificate
-
HC2/HC3 Certificate
-
Universal Credit (meeting criteria)
-
You can see the full eligibility criteria for a free NHS eye test here:
👉 Who Is Entitled to a Free Eye Test
Are There Differences Between an NHS Test and a Private Test
In terms of the vision and health checks performed by the Optician there is absolutely no difference between an NHS Test and a Private Test.
Can Eye Tests Detect Other Health Conditions?
Yes, a thorough eye exam can sometimes reveal general health issues, including:
-
Diabetes – diabetic retinopathy signs
-
High blood pressure
-
Brain problems – e.g., strokes, MS, or tumours
-
Sinus infections
Additional health observations include early detection of eye conditions like glaucoma, cataracts, and macular degeneration.
What Are OCT and ODAC Eye Tests?
-
OCT (Optical Coherence Tomography): A high-resolution scan of your retina, helping detect glaucoma, macular degeneration, and other retinal issues.
-
ODAC Eye Test: Measures eye alignment and visual function for detailed diagnostics.
What does cyl mean on an eye test?
Cylinder (cyl) measures astigmatism, a refractive error causing blurred vision.
What does axis mean on an eye test?
Axis shows the orientation of astigmatism correction in your lenses.
Can I have an eye test with conjunctivitis?
Usually, yes, but your optometrist may advise waiting until the infection clears.
What is the eye test for glaucoma?
Involves eye pressure measurement, optic nerve examination, and sometimes OCT scans.
Which is the best opticians for eye tests in the UK?
Choose registered, qualified optometrists with positive local reviews and advanced testing equipment.
How to Book an Eye Test
Booking is simple:
-
Book online via their website.
-
NHS appointments may require checking eligibility first.
Regular eye tests aren’t just for updating your prescription, they protect your vision and can save your sight. Understanding eligibility, what happens in a test, and when to book helps you make the most of your eye health care.
Did you know that an eye test does more than just check your vision? An eye test is a vital health check that can detect early signs of eye conditions and even general health issues. Here’s everything you need to know.
What Happens During an Eye Test?
During an eye test, a qualified optometrist will:
-
Check your vision using various lenses and charts.
-
Examine the overall health of your eyes.
-
Use a slit lamp, high-powered lens, and light to see in detail the lens, anterior chamber, vitreous, and retina.
-
Conduct additional tests such as peripheral fields tests, OCT (Optical Coherence Tomography), and glaucoma checks.
These tests allow your optometrist to detect:
Some conditions, if left untreated, could result in permanent vision loss. About half of sight loss in the UK is preventable, making regular eye tests essential.
How Often Should You Have an Eye Test?
-
Most people should have an eye test every 2 years.
-
If you have a family history of glaucoma, or your optometrist wants to monitor your vision closely, you may need tests annually.
-
If you notice any changes in your vision, book an eye test sooner rather than waiting.
How Long Does an Eye Test Take?
A standard eye test usually takes 20–45 minutes, depending on additional health checks such as OCT or visual field tests.
How Much Is an Eye Test?
-
NHS Eye Test: Usually free if you meet certain criteria.
-
Private Eye Test: Costs vary, typically between £20–£50.
Who Is Entitled to a Free Eye Test?
You may qualify for a free NHS eye test if you are:
-
Under 16, or 16–18 in full-time education
-
Over 60
-
Aged 40 or over with a family history of glaucoma
-
Diagnosed with glaucoma or diabetes
-
Registered blind or partially sighted
-
Receiving certain benefits, such as:
-
Income Support
-
Income-based Jobseeker’s Allowance
-
Pension Credit Guarantee Credit
-
ESA
-
Tax Credit Exemption Certificate
-
HC2/HC3 Certificate
-
Universal Credit (meeting criteria)
-
You can see the full eligibility criteria for a free NHS eye test here:
👉 Who Is Entitled to a Free Eye Test
Are There Differences Between an NHS Test and a Private Test
In terms of the vision and health checks performed by the Optician there is absolutely no difference between an NHS Test and a Private Test.
Can Eye Tests Detect Other Health Conditions?
Yes, a thorough eye exam can sometimes reveal general health issues, including:
-
Diabetes – diabetic retinopathy signs
-
High blood pressure
-
Brain problems – e.g., strokes, MS, or tumours
-
Sinus infections
Additional health observations include early detection of eye conditions like glaucoma, cataracts, and macular degeneration.
What Are OCT and ODAC Eye Tests?
-
OCT (Optical Coherence Tomography): A high-resolution scan of your retina, helping detect glaucoma, macular degeneration, and other retinal issues.
-
ODAC Eye Test: Measures eye alignment and visual function for detailed diagnostics.
What does cyl mean on an eye test?
Cylinder (cyl) measures astigmatism, a refractive error causing blurred vision.
What does axis mean on an eye test?
Axis shows the orientation of astigmatism correction in your lenses.
Can I have an eye test with conjunctivitis?
Usually, yes, but your optometrist may advise waiting until the infection clears.
What is the eye test for glaucoma?
Involves eye pressure measurement, optic nerve examination, and sometimes OCT scans.
Which is the best opticians for eye tests in the UK?
Choose registered, qualified optometrists with positive local reviews and advanced testing equipment.
How to Book an Eye Test
Booking is simple:
-
Book online via their website.
-
NHS appointments may require checking eligibility first.
Regular eye tests aren’t just for updating your prescription, they protect your vision and can save your sight. Understanding eligibility, what happens in a test, and when to book helps you make the most of your eye health care.