Research estimates that 19 million British people are failing to have regular eye tests and one reason for this could be busy schedules, among others.
Many people delay eye exams because they assume they will take longer than expected, but the truth is that most tests are much quicker than you might think. So, how long does an eye test take?
In this article, we will explain the process, the factors that can affect the duration, and how to make the most of your appointment.
What Happens During an Eye Test? A Step-by-Step Guide

1. Initial Consultation:
The optician begins by asking questions about your health history, any existing vision problems, and whether you have experienced any recent changes in your sight. This is an essential part of the test, as it helps the optician understand your needs.
2. Visual Acuity Test:
You will be asked to read letters from an eye chart to measure how clearly you can see at various distances. This test helps determine whether you need glasses or contact lenses.
3. Eye Health Examination:
The optician will examine the health of your eyes by looking at the front and back of your eyes using a special light. They may use a slit-lamp microscope to get a close-up view of your cornea, lens, and retina.
4. Intraocular Pressure Test:
This test checks for glaucoma, a condition that causes damage to the optic nerve. It’s often done by puffing a quick burst of air into your eyes or using a small device that gently touches the surface of your eye.
5. Additional Tests:
If needed, the optician may perform additional tests, such as checking for colour blindness or examining your peripheral vision.
How Long Does an Eye Exam Take?
On average, your eye exam can take about 20 to 30 minutes. During this time, the optician will conduct a series of tests to evaluate both your vision and overall eye health.
This includes checking for common conditions like nearsightedness, farsightedness, astigmatism, and signs of eye diseases such as glaucoma.
If you’re experiencing specific symptoms or concerns, the exam may take up to 45 minutes or longer. This extra time allows the optician to perform more detailed assessments. They ensure that any underlying issues are identified early.
The optician can then recommend the most suitable treatment or corrective options based on your eye health needs.
6 Factors That Affect How Long An Eye Test Takes

While most eye tests are quick, the following factors can influence the total time required.
1. First-Time Eye Tests
If it is your first eye test, the optician will take extra time to gather information about your health history and explain the process. The initial consultation is often more detailed for first-timers, so expect the appointment to last a little longer.
2. Glasses or Contact Lenses
If you’re getting new glasses or contact lenses, the optician may need additional time to discuss your prescription and the best options for your vision needs.
Extra time may be required for contact lenses to ensure a proper fit and help you become comfortable handling and wearing them. This ensures you have the right solution for your eye health and lifestyle.
3. Vision Problems or Symptoms
If you’ve noticed changes in your vision, such as blurry sight or eye strain, the optician may conduct additional tests to diagnose the problem accurately.
Depending on the nature of your symptoms, it may take a little longer to perform these tests and provide a proper diagnosis.
4. Pupil Dilation
During a routine eye exam, the optician may dilate your pupils using special drops to get a better view of the back of your eyes. This procedure can add extra time to your appointment, as the effects of the drops may take up to 30 minutes to wear off.
5. Additional Tests or Screenings
Certain tests, such as colour blindness screenings, retinal scans, or tests for macular degeneration, may be required based on your age, symptoms, or medical history.
These screenings can extend the length of your appointment but are crucial for early detection of potential eye health issues.
6. Your Age
With age, our eyes undergo changes that may require more detailed examinations. The optician may take extra time for older adults to check for age-related conditions such as cataracts, glaucoma, or macular degeneration.
Similarly, children eye exams may require extra time to ensure their vision is developing properly. The optician will carefully check for conditions like nearsightedness or astigmatism, as children may not always be able to communicate vision problems.
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. Can an eye test detect other health conditions?
Eye tests can help detect signs of conditions like high blood pressure, diabetes, and glaucoma. Opticians can also spot abnormalities in the eye that may indicate other underlying health issues.
2. Do I need an eye test if I have no symptoms?
Even if you have no symptoms, it is still recommended to have a routine eye test every two years. Some conditions, such as glaucoma or macular degeneration, may not show noticeable symptoms until later stages, so early detection is key to managing your eye health effectively.
3. How long will my pupils stay dilated after an eye exam?
After an eye exam that includes pupil dilation, the effects of the drops typically last for 2 to 4 hours. During this time, your vision may be blurry, and you may be more sensitive to light.



