Talking of eyes.

cataracts?

Make a eye mask with a small hole and cover each eye in turn and view the clock through this small hole

The clock display is a single wavelength whereas your TV display is outputting multiple wavelengths. Perhaps blue perception is affected first?

Central serious retinopathy and/or wet macular degeneration.

F*ck all you can do about it .

If you are lucky its a cataract and a lens replacement might fix it, but the loss of colours is a pointer towards a retinal issue....

Make an appointment with a high street optician. I wouldn't risk my eyesight relying on a diagnosis on the internet.

Another Dave

I think if you were looking at a blue light through a yellow filter it might well look less intensely blue.

Early cataract is commonest/likeliest, but of course it would be worth getting a opticians opinion.

Tim

No, make an appointment via your GP with an ophthalmologist

I wouldn't risk my eyesight relying on a diagnosis from a high street optician

However both likely conditions - a cataracts and/or retinopathies/macular degeneration - will not get worse because they are not treated. They will just get worse anyway.

Cataracts are merely fur in the lenses. Replacing the lens is the standard procedure. It probably wont be accompanied by change or loss of colour vision, but it will definitely reduce night vision.

Retinal problems are characterised by distortion - does a grid of lines still look square? - and by different effects on rods and cones - is colour vision (partially) lost in one eye? - and by loss of night time vision.

In both cases its beyond a high street optician to say more than 'see an ophthalmologist at the hospital'.

Who can do 3D retinal scans ...and identify cataracts.

Perhaps. But AFAIK cataracts are not yellow.

Not worth the price. Go via GP to hospital and see a decent ophthalmologist.

"High street" opticians routinely look for and advise on the existence of cataracts. (Mine has been telling me about the state of mine for the past 5 years.) And the NHS tells people[1] to see one about suspected cataracts. Dave is also likely to get in to see one much sooner than he will see an ophthalmologist via his GP. And to be told if he needs to get attention urgently: I knew someone given a note from the optician in Boots and told to wait while they called a taxi to take him to Moorfields.

An optician will do a series of eye tests, including a visual acuity exam, which measures how well you see at various distances.

If the optician thinks you have cataracts, you may be referred to an eye specialist (ophthalmologist) for more tests and treatment."

Be careful of High Street opticians. A few years agom I was told by my optician that I had serious cataracts and should have an operation. The optician recommended a particular private specialist. I mamged to arrange to see a specialist through the NHS who told me by cataract was very small and he wouldn't dream of doing an operation, bearing in mind the risks involved. I changed my optician.

Check for a cataract. That can have that effect, but eyes are naturally unbalanced and the brain compensates as it does for many things to do with eyesight, which is why some people drive when they have a serious eye problem as the brain fills in the bits and hence what you see is what you expect those. . Brian

Cataracts will cause colours to be a littler duller than previously. Also you will start to see coloured haloes around e.g. small bright lights seen at night (just as if you're wearing glasses that have steamed up).

For me the symptom that pointed at cataracts much earlier than either of the above was a progressive change in my prescription - from being somewhat long-sighted I ended up being a bit short-sighted, over a period of about two years.

And you've been doing nothing about it? Why not?

In my case because I have had more serious issues to attend to and it wasnt a huge deal

Um, firstly minor cataracts are hardly life threatening, secondly, although the operation is very safe these days, it?s still an invasive procedure with risks and there?s no point exposing oneself to those risks until the cataracts become a problem and thirdly, seeing an optician regularly *is* doing something about it.

Tim

Tim Streater snipped-for-privacy@greenbee.net wrote

That happens with some people even without cataracts.

In message snipped-for-privacy@mid.individual.net>, Tim Streater snipped-for-privacy@greenbee.net writes

Specsavers have been mentioning a small cataract in my right eye for the last 6 years. It doesn't seem to have an impact on daylight vision so what do you think anyone else is going to advise?

Tim Streater snipped-for-privacy@greenbee.net wrote

I got the same thing. I chose not to do anything about it because I wasn?t getting any symptoms at all and my GP sneered at the recommendation from the optometrist to get cataract surgery and pointed out that we had always had ophthalmologist raking in great bags of money doing cataract surgery that was not required.

When I got a very significant eye injury and had to see an ophthalmologist

When I got my most recent prescription test, the ophthalmologist did find that I couldn?t read that line on the eye chart reliably and said that I likely could pass it on a good day but not every day.

Damned nuisance because I still don?t get any symptoms and can still read the small street name signs as I drive past them fine.

Currently around my way 6 months+ wait

I have been doing just what my opticians - and the NHS - advise: getting regular check-ups; and then making an informed decision based on my eyesight and my needs. Given my acuity in May was 6/4.5 & n5 in both eyes, and I am OK in the light levels I encounter, I've decided to wait.