What happens in a test?

Your eye test

Studies have found that as many as one in five Brits have a health problem not related to the eye that could be diagnosed through a routine eye test. (However, only about 20 per cent of us go for the recommended check-up every two years.)

Booking in.

The eye test will generally begin with the optical assistant (Rachel) making sure your confidential customer record is accurate and up to date. You will be asked questions about your general health & well being, and also about any relevant heath issues associated with members of you immediate family, such as diabetes or glaucoma.

At Eyeful Tower we take great pride in running a tight ship and it is very unlikely that you will have to wait very long at all before the optician / optometrist is ready to see you.

The Autofocimeter.

If we don't already have a record of your old precription it is very helpful to us if you could bring along your last eye test result. If you no longer have this written copy then we can read your prescription from your current glasses using the autofocimeter. Even if your frames are broken or your lenses are scratched please bring your old glasses to give us a point to start from.

The Visual Field Screener.

The visual field screener will test how well you see in the peripheral but also how sensitive your eyes are overall. You will sit in front of a small machine and respond to randomly flashing lights on a screen by pressing a button whenever you see them.

This is a very quick and easy way for us to check for any blind spots which may need further investigation.

The non-contact Tonometer.

The tonometer blows a few puffs of air into each of your eyes in turn. The air bounces back at the instrument, giving a measurement of the pressure inside each eye.

Some people find this part a little unpleasant but it is a very quick and genuinely does not hurt at all. This is an important test, as high pressure can indicate the early stages of glaucoma, a sight-threatening condition.

The Retinoscope.

The optometrist may use an instrument called a retinoscope, which bounces a light beam off the back of your eye and back into the instrument. Different lenses focus the reflected light beam until it is steady, giving a close guide to the prescription you need.

The retinoscope is very accurate - it is used to test the sight of very small children, or people with communication difficulties who can't easily describe how clearly they can see.

The Ophthalmascope,

The ophthalmoscope is a hand held instrument used to examine the retina at the back of the eye, including the blood vessels and the front of the optic nerve. This important test can detect changes which can indicate diseases such as diabetes or high blood pressure. The optometrist darkens the room and will sit or stand quite close to you, while they shine a bright light into each eye in turn using the ophthalmoscope. The light may leave shadows on your vision, but these soon fade.

The Slit-lamp.

The slit-lamp is a powerful, illuminated microscope that is used to examine the outer surface of your eyes - the cornea, the iris and the lens - to check for abnormalities or scratches.

The Digital Test Chart

This is the part of the test that most people will be familiar with where the strength of your glasses prescription will be determined. The Optometrist will show you letters of different sizes asking you to read the smallest line of letters you can see clearly, through different strength lenses. The results for each eye will more than likely be different from one another so each eye will be tested individually before both eyes are tested together. This procedure is known as refraction

We asked our patients weather they preferred either a trial frame {image to follow} or the large over head phoroptor {image to follow}.

There was a resounding preference for the trial frame so this is what we will use during your sight test.

The digital test chart can also display the duochrome test or the “red or green” test, to check the most accurate prescription has been determined.

Ishihara

This is the colour-blindness test. Not everybody will need to go through this part of the test, but the optometrist uses this procedure to diagnose colour blindness.

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