Online colour vision test

[34theletterbetweenB&D]

Neat online test, linked to by a Beeb news item yestoddy.

 

http://www.color-blindness.com/farnsworth-munsell-100-hue-color-vision-test/#prettyPhoto/2/

 

All the usual reservations about calibration of the colour monitor used apply, but it should give some idea of how well your personal colour imaging apparatus is functioning. It closely matched the results obtained from tests I have had performed by specialists in the past, to do with my employment.

 

I'd never argue about Stroudley's improved engine green, 'cause it is smack where my small anomaly lies;(in what is overall characterised as 'normal colour vision')  it helps to know. (I see low pressure sodium street lighting as distinctly orange, and had to be learned to say the Sodium D lines are 'yellow' for the purposes of the O level physics paper sat long ago.)

[Ozexpatriate]

Interesting instrument - thank you.

[Rumblestripe]

A few of those who insist that they can tell when "Uncle Fred's" LNER Doncaster Green is too yellow/blue need to have a go at that test, if nothing else it will demonstrate to you how difficult it is to get an exact shade even when you are presented with it! The limitation of you monitor will affect your results and I only have a cheap and quite elderly (and cheap) LCD panel in front of me and found that although my colour vision is in the "normal" range I fell out of the range on this test.

[New Haven Neil]

Funny thing, colour vision - my wife is red/green colour blind, yet passed the police medical test!

[big jim]

thats quite good, i have just done it and got a score of 16 so have no colour vision deficiancy, just as well really, don't want to get red and green mixed up in my job!

[Tony_S]

Funny thing, colour vision - my wife is red/green colour blind, yet passed the police medical test!

My late father in law was a GP. He was quite severely colour vision deficient. To test his patients he had to learn what the "normal" response was to tests. His grandson has identical problems. Our son can't distinguish pink, lime green and silver grey. He has problems with blue and purples too. He says that red and green are shades of "brown" but he reliably identifies traffic lights as the top brown is different to the lower brown!

[34theletterbetweenB&D]

... He says that red and green are shades of "brown" but he reliably identifies traffic lights as the top brown is different to the lower brown!

Sounds very like an acquaintance of mine, who appeared with his trousers most unfortunately stained. He'd dumped most of the contents of a (fortunately relatively cool) gravy boat in his lap earlier in the day, and was cheerfully congratulating himself that it had barely left a mark now it had dried.

[kevinlms]

Interesting. I've never had problems detecting colours before, but this is proving to be most difficult with several goes & getting results of between 110 & 180.

 

I tried the standard 38 plate test without any problem at all.

 

The only thing I can put it down to, is that I currently have a virus & hay fever at the same time, resulting in very itchy eyes!

 

Any one have any thoughts on that conclusion?

[34theletterbetweenB&D]

If you are not feeling comfortable and well  - itching eyes are enough - it's likely at very least to disturb your concentration. The capability of the colour monitor used for the test cannot be ruled out either. Try a revisit when feeling on form?

 

Very obviously the eyes are part of the nervous system. Anything that affects the nervous system therefore may show up in vision. I have seen objective evidence of the effect of a bad case of food poisoning - the outward effects not yet obvious to the victim - on visual capacity; also from the combination of high temperature due to fever and the medication used by the sufferer in order to get into work. (Really quite worrying in the context of that person having driven over forty miles from their home.) As for 'recreational narcotics', wild and wonderful. This from a spell in the USA, where a great many folks were 'recreating' with 'substances' like it was going out of fashion.