A standard eye test usually takes 20 to 30 minutes. At Mosspark Opticians, every eye test is booked for 45 minutes, whether it is NHS or private.

That extra time is deliberate. I’m Rahillah Moghul, the Independent Prescribing optometrist who owns Mosspark in Bellahouston, and I spent nearly 20 years in high-street practices before opening it. The most common thing patients told me was that they felt rushed. This guide explains what happens during an eye test, what can make it take longer, and why I think 45 minutes is the right length.

What happens during an eye test?

What Happens During an Eye Test A Step-by-Step Guide

An eye test checks far more than whether you need glasses. Here is what we do, in order:

  1. Your history. We talk about your vision, any symptoms such as headaches or eye strain, your general health, medication and any family history of eye conditions like glaucoma.
  2. Your prescription. We check how clearly you see at distance and close up, and fine-tune the lens power for each eye.
  3. How your eyes work together. Each eye can be sharp on its own while the pair doesn’t coordinate well, which can cause tired eyes and headaches when reading or using screens. We check eye alignment and focusing.
  4. Eye health, front and back. We examine the surface of the eye, the lens, and the retina and optic nerve at the back, using retinal imaging so we can compare pictures from one visit to the next.
  5. Pressure and visual fields, where needed. The eye pressure test helps screen for glaucoma, and the field test checks your side vision by asking you to respond to small lights.
  6. Your results. We go through what we found, show you your retinal images and agree what happens next, whether that’s new glasses, monitoring or treatment.

For a closer look at each stage, our comprehensive eye exam in Glasgow page explains the equipment we use.

Why every eye test at Mosspark takes 45 minutes

We call our approach Slow Optometry. The last step, explaining your results, is the one that usually gets squeezed in a short appointment, and it is the step patients value most. With 45 minutes, I can talk you through your retinal images and answer your questions without watching the clock.

You also see the same optometrist from start to finish, rather than being passed between staff for different tests. If you would be more comfortable having your eye test in Urdu or Punjabi, we offer consultations in both, as well as English.

If I find something that needs treatment, such as an eye infection or inflamed eyelids, I can often treat it on the spot. As an Independent Prescribing optometrist I can prescribe medication for many eye conditions, so you don’t need a separate GP appointment.

What can make an eye test take longer?

6 Factors That Affect How Long An Eye Test Takes

 

Your first eye test

If it’s your first test, or your first with us, we spend longer on your history so we have a full picture from the start.

Dilating drops

Sometimes I need to widen your pupils with drops to see the back of the eye in more detail. The drops take around 20 to 30 minutes to work. Afterwards your vision can be blurry and sensitive to light for several hours, so bring sunglasses and don’t drive until it has returned to normal.

Contact lenses

A contact lens check-up includes checking how your lenses fit and the health of the front of the eye, so it takes longer than a glasses-only test. A first fitting includes a trial and lessons on handling lenses. Our contact lens fitting and aftercare page explains what’s involved.

Children

Young children go at their own pace, and they don’t need to be able to read. We use pictures, shapes and non-verbal checks. Read more about children’s eye tests at Mosspark.

Extra scans

If glaucoma runs in your family, or you have a condition that needs monitoring, I may suggest an OCT scan. It builds a detailed, layer-by-layer image of the retina and optic nerve, and takes about 30 seconds per eye within the same appointment. Here’s what an OCT scan shows.

Eye tests at home

If you can’t get to the practice on your own because of illness or disability, we can carry out the test at home. It follows the same steps with portable equipment. See our home visit eye tests.

Does a longer eye test cost more?

No. In Scotland, NHS eye tests are free for everyone who ordinarily lives in the UK, and at Mosspark an NHS test is the same 45-minute appointment as a private one. You can check who qualifies for a free eye test in Scotland and how often you’re entitled to one.

The only extras with a fee are optional ones, such as an OCT scan. We always explain these before anything is charged, and your eye test never depends on them.

What to bring to your eye test

  • Your current glasses and contact lenses, including reading glasses
  • A list of any medication you take
  • Sunglasses, in case you need dilating drops
  • Proof of benefits, only if you are claiming an NHS voucher towards glasses

If you’re arranging a test for the first time, our guide on how to book an eye test in Glasgow covers what to ask before you call.

How Often Should You Have an Eye Test? Expert Recommendations

According to the National Health Service (NHS), most adults should have an eye test every two years, even if they do not experience any symptoms. 

If you have a family history of eye conditions or are at risk for vision problems, more frequent exams may be recommended.

Conclusion

Now that you know the answer to the question “how long does an eye test take?” and what to expect during the examination, it will help you feel more comfortable and prepared. Whether it’s a routine check-up or a specific concern, most eye exams are quick and straightforward.

For a trusted, personalised approach to eye care, consider visiting Mosspark Opticians. Here, you will receive high-quality service tailored to your needs. 

Ms Rahillah Moghul
BSc MCOptom DipTp(IP)

Independent Optician – Mosspark Opticians, Glasgow

Rahillah is a fully qualified optician with nearly 20 years of experience providing professional eye care in Glasgow. As the owner of Mosspark Opticians, she specialises in comprehensive eye examinations, prescription glasses, children’s eyewear, and personalised optical solutions. Known for a patient-focused approach, Rahillah is committed to clear communication, clinical excellence, and long-term eye health for patients of all ages.

FAQs

1. How long does an eye test take?

A standard eye test usually takes 20 to 30 minutes. At Mosspark Opticians every eye test is booked for 45 minutes, so there is time for a full eye health check and to explain the results.

2.

How long does an eye test take if my eyes are dilated?

Dilating drops take around 20 to 30 minutes to work, so allow extra time. Your vision can stay blurry and sensitive to light for several hours afterwards, so you should not drive until it has returned to normal.

3.

How long does a contact lens check-up take?

Longer than a glasses-only eye test, because we also check how the lenses fit and how healthy the front of the eye is. A first-time fitting takes longer again, as it includes a trial and lessons on putting lenses in and taking them out. We will tell you how long to allow when you book.

4.

How long does a children’s eye test take?

Children get the same unhurried appointment as adults. Young children can go at their own pace, and they don’t need to be able to read, as we use pictures, shapes and non-verbal checks.

5.

Is a 45-minute eye test free on the NHS?

Yes. NHS eye tests are free in Scotland for everyone who ordinarily lives in the UK, and at Mosspark an NHS test is the same 45-minute appointment as a private one. Optional extras such as an OCT scan have a fee, which we always explain first.

 

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