Eye Care

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Different vision test results – how can this happen?

Different vision test results – how can this happen?

If you have regular eye examinations (which everyone should) you may have found that the results differed – even when the tests were taken by the same optician and in a very short time frame. If this has happened to you, don’t panic! It’s actually a very common occurrence due to a couple of different reasons.

  1. Your eyes – The visual performance of our eyes varies throughout the day due to fluctuations in our hormones and blood sugar amongst other things. A test taken before the workday and after an hour on the computer will often yield a different result due to the stress that has occurred to the eye in a short period. To achieve the best result, try and schedule your test for a time when you’re relaxed, hydrated and not hungry. First thing in the morning is ideal.
  2. The conditions during your test – The conditions in which a sight test is performed can have a distinct impact on the result. You should see an experienced optician for a thorough and comprehensive test in a dark examination room without any daylight present. To ensure the best result, make an appointment with your optician and discuss any issues or questions you may have.
  3. Exterior influencers – Wearing contact lenses, taking medication and conditions like diabetes can all lead to an incorrect eye test result. To ensure the most accurate reading, let your optician know what medication you’re taking and if you suffer any medical issues. Try wearing your glasses instead of your contacts for 24 hours before your test as well if you can.