Can YOU tell who these 4 celebrities are behind the dots?

Can YOU recognise the four celebrities behind the dots? Opticians claim this bizarre test shows whether you’re colour blind (tip: lean back and squint)

• Opticians have hidden the spectacle wearing A-listers among the quirky images
• The team at Optical Express devised their own version of the Ishihara plate test
• Opticians regularly use the century-old test to identify colour vision deficiency

If you can’t tell you who these four celebrities are behind the dots, it could be a sign you are colour blind.

Opticians claim the bizarre test – a tweak on one commonly used in eye clinics – can show whether you are one of millions to have the condition.

The Ishihara plate test, as it is officially known, normally hides numbers behind the dots and asks patients to try and identify them. Those who struggle are often told they have red-green colour deficiencies.

But in a twist of the century-old method created by a Japanese professor, Optical Express have instead hidden four spectacle-wearing A-listers.

And if you’re struggling to recognise who the famous faces are, it may help to lean back and squint.   

Answers at the bottom 

Opticians have hidden the spectacle wearing A-listers among the quirky images in order to raise awareness of the common condition

They have today warned those who struggle to identify the celebrities behind the spots may be colour blind and require further testing

Stephen Hannan, clinical services director at Optical Express, said the test was created to boost the profile of Colour Blind Awareness Day.

He said: ‘Although a harmless condition, we want to raise awareness of just how common colour deficiency can be and stop it being overlooked in schools, the workplace and everyday life.

‘Removing the stigma and providing greater information on the condition will help those who struggle to distinguish between certain colours lead a normal and unrestricted life.

‘Typical vision tests don’t check for colour vision deficiency.

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‘However, if you are struggling to see the famous faces in our Ishihara test and think you may be colour blind, your optometrist can take you through a longer version of the Ishihara test or a colour arrangement task to diagnose the severity of your case.’

Figures suggest there are almost three million Britons living with the condition, even though scores are unaware they have it.

Most patients struggle to differentiate between certain colours from birth, but, in rare cases, it can develop later in life.

It is more common in men, affecting around one in 12 men compared to one in 200 women, as it is often passed on by parents through the X chromosome.

The team at Optical Express devised their own version of the Ishihara plate test, developed by a Japanese professor a century ago

Opticians use the Ishihara test to identify colour vision deficiency, commonly referred to as being colour blind

WHAT IS THE ISHIHARA TEST AND HOW DOES IT WORK? 

Dr Shinobu Ishihara, a professor at the University of Tokyo, devised the idea to test for red-green colour deficiencies in 1917.

His test, named after him, is now widely used by opticians – including ones working in the NHS – as one of the main ways of diagnosing patients who are colour blind.

It is not part of the routine eye test given by opticians on the health service in the UK, which patients should have every two years.

The Ishihara tests for red-green colour deficiencies and consists of up to 38 plates or round spotted images, which typically show a number or pattern in various colours.

The pseudo-isochromatic plates typically consist of four different types of design: a vanishing design which can only be detected by those with good colour vision, a transformation design which appears differently to those who are colour deficient, a hidden digit design which is only visible to those who are colour blind, and a classification design which can be used to detect red and green colour deficiency. 

Being colour blind does not have a direct impact on health – and most people gently adapt to the condition over time.

Notable celebrities such as Prince William, Keanu Reeves and Eddie Redmayne have confessed to having a colour vision deficiency.

Most patients find it hard to distinguish between red and green, and blue and yellow as colours often appear much duller.

Opticians say this makes it hard for patients to tell the difference between shades of purple, red, orange, yellow, brown and green.

Dr Shinobu Ishihara, a professor at the University of Tokyo, devised the idea to test for red-green colour deficiencies in 1917.

His test, named after him, is now widely used by opticians – including ones working in the NHS – as one of the main ways of diagnosing patients with the condition.

It is not part of the routine eye test given by opticians on the health service in the UK, which patients should have every two years.

But patients concerned about their vision can ask to have the test, in which they will have to identify numbers contained within images made up of different coloured dots, if they wish.

It comes after the Department for Education in the UK recognised colour blindness as a Special Education Need and a disability two years ago.

WHO ARE THE CELEBRITIES BEHIND THE DOTS?

Bono, U2 frontman  

Elton John, English singer, pianist and composer

Iris Apfel, fashion icon, business woman and interior designer

John Lennon, singer, song-writer and co-founder of The Beatles

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