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How does a dementia sight test differ from the norm?
It's not your everyday sight test...

If you are reading this now chances are you have had a sight test at some point in your life, it is a common part of checking our own wellbeing.

In most cases this means popping down to your local opticians, having a quick chat to establish how your vision is and how you see things during the test.

Once your examination is complete your optician will most likely go through what the exam has indicated and what their recommendations are.

It’s a simple process and one that is very easy to take for granted when we think about how someone undergoes a sight test.

That experience of going down the high street and getting a sight test is quite different to what Visioncall offer, in fact, we have gone to great lengths to ensure we suit our patients needs.

The reality is that a standard test is simply not possible for some of the residents we examine.

While both may strive for the same result, we have adapted how we perform a sight test to fit the person.

50% of older people living in care homes have some form of sight loss, and for those who also have dementia this means traditional methods of testing is simply not possible.

The solution to this was to develop our own unique way to test the vision of someone living with dementia so we can assess them in a professional and appropriate manner.

Our dementia sight test uses different techniques and equipment to gather results using two different approaches.

This is what is known as subjective testing and objective testing.


Subjective testing requires a verbal response with the patient and is more in line with what you would expect in a standard sight test.

This would result in using a letter chart for the examination, except our charts also feature numbers and symbols depending on their needs.

On the other hand, objective testing does not require a verbal response from a patient and gives us the means to test someone who has problems communicating.

Equipment such as an autorefractor (an automated machine which gives an approximate prescription reading) and a retinoscope (a manual instrument which gives a more accurate prescription using trial lenses in front of the eyes) allow us to deliver an objective test.

Visioncall opticians are trained using the latest mobile equipment to check everything during a dementia sight test - from a person’s vision to the health of their eyes.

Our opticians will always communicate and engage every person undergoing a sight test.

This ensures we treat each person with dignity and respect, and also allows us to establish which means of testing will suit the person.

It is these extra details which make a huge difference for residents undergoing a dementia sight test.

When compared to a standard sight test you receive on the high street, even though both strive for the same outcome, it is the attention to each person which truly sets our sight tests apart.

For more information or to arrange a dementia sight test from Visioncall, click here.