CyprusLiving

There are 12 black dots but how many can you see at at any one time?

I see lots of dots!!

Two

That's all I can at any one time. If you left click on the image it should expand but still only 2

I can't look..... sends my eyes daft

None without my glasses but all 12 with.

Jules as long as it's only your eyes that's fine with me Now the boring explanation. Most people are unable to see all 12 at the same time.So why does this happen? It is when the eye sees for instance a particularly arranged pattern that the brain may not be able to process accurately. Ninio explains: "When the white disks in a scintillating grid are reduced in size, and outlined in black, they tend to disappear. One sees only a few of them at a time, in clusters which move erratically on the page."Where they are not seen, the grey alleys seem to be continuous, generating grey crossings that are not actually present. "Some black sparkling can be seen at those crossings where no disk is seen. The illusion also works in reverse contrast."

Got it

Having said all that panoscouse can see all 12. Amazing stuff that Zirvania

12

Jen are you & panoscouse kidding me. You would both make great fighter pilots but reading the scientific splurge again it does say most people cannot see all 12 at the same time. That means you are both 2 of the few

I'm off to SpecSavers tomorrow to collect 2 new pairs of reading glasses - one tinted so I can sit and read outside in the sunshine

Got my free eye test last week (mum was diagnosed with Glaucoma a few years ago) and informed my eyes are perfectly healthy. I had them lasered at the back end of 2003 and haven't had my eyes tested since then!

I've been living with the over the counter cheapo readers for the last 3yrs or so knowing full well that only 1 eye needed a bit of jiggery pokery. Amazing the difference it made when looking through those opticians magic lenses

Two pairs for £69 seemed like a pretty good offer.

What I did when I opened up the posting on my laptop I clicked on the puzzle and saw all of them.

Honestly not joking.

Yes, I saw them all originally but when you study it you then can only see 2.

Jen is correct - that works for me too!

12

OK ladies I knew some of you would get to see all 12 but us guys will be fighting back so don't go away

I can see all of them........If I move my eyes around the puzzle, but only 2 at a time.

Perhaps alcohol helps. Counted 9 tonight at the same time