An eye test is not just about getting glasses – it is a vital health check for your eyes.

We recommend that everyone should have an eye test every two years, and more often if you notice any changes to your vision or eyes.

Optometrists check for eye diseases such as macular degeneration, cataracts and glaucoma. A routine eye test can also pick up systemic disease such as diabetes, high blood pressure and even certain brain tumours, so it is important to have your eyes tested whether you wear glasses or not.

Here, we have explained just a couple of the dozens of possible tests that your optometrist may tailor to suit your individual needs.

Measuring the pressure of your eyes

The first part of an eye test includes a number of preliminary measurements and scans to give the
optometrist more information about your eyes.

One of these measures the intra-ocular pressure of your eyes with an instrument called a non-contact tonometer. This instrument will blow a puff of air at each of your eyes and then measure the force of the air that bounces back at the instrument.

This is an important test as high intra ocular pressures indicate high risk for an eye condition called glaucoma, much like high blood pressure can indicate a higher risk for heart disease.

Nicknamed the ‘thief of sight,’ many of the early symptoms of glaucoma are unnoticeable, but
if detected early through routine eye tests, the condition can be managed before sight is lost.

Scanning the back of your eye

Unlike other optometrists, at Specsavers, an OCT Scan is free with every eye test.

OCT (or Optical Coherence Tomography) takes about 15 seconds and is similar to ultrasound imaging but uses light instead of sound. 

The technology enables the optometrist to capture detailed cross-sectional 3D images of the back of the eye, allowing to screen for abnormalities, which can help with the early detection of diseases including glaucoma, macular degeneration and retinal changes that may be associated with diabetes.

The images are stored and any detected abnormalities are then monitored, treated or referred to better protect the quality of your sight and overall eye health.

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