Did you know?

We have col­lect­ed some inter­est­ing num­bers and facts about the human eye.

Did you know?

We have col­lect­ed some inter­est­ing num­bers and facts about the human eye.

  • Brown
  • Blue
  • Green

Eye colors

Less then 35% of the Ger­man pop­u­la­tion have brown eyes. Seen world wide, it is the the most com­mon eye col­or.
Only 1,6% of the worlds pop­u­la­tion has green eyes
A child does not nec­ces­sar­i­ly need to inher­it the par­ents eye col­or
The col­or of the iris is depen­dent on the amount of the pig­ment melanin.
Blue eyes got only a lit­tle melanin. The dark­er the eye col­or, the more of the pig­ment is present.

Blue Eyes

Blue eyes most­ly have a clear­ly dis­tinc­tive struc­ture.
The sin­gle mus­cle fibers of the iris are often vis­i­ble with­out any mag­ni­fi­ca­tion and go off radi­al oud­ward­ly of the iris.
Blue is not blue…
Even with­in a sin­gle eye there can be var­i­ous shades of blue and nuances. 
blaue-iris
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Brown Eyes

Brown Iri­des do not con­tain any vis­i­ble mus­cle fibers. The con­sist of var­i­ous lay­ers of dif­fer­ent shades of brown. Some even look like craters or waves of the ocean. If the iris is very dark it is often not even pos­si­ble to see any struc­tures at all. But with our spe­cial iris pho­to tech­nique we bring light into dark­ness.
Brown eyes are actu­al­ly blue in deep­er lay­ers. The brown melanin coat­ing only exists in the top lay­er.
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Green Eyes

The struc­ture of the green iris is sim­i­lar to those of blue eyes. It is well vis­i­ble but often a bit more ran­dom and less straight for­ward.
How­ev­er the most inter­est­ing part here are the col­or: 
Most of eyes which usu­al­ly appear geen are actu­al­ly com­prised of mul­ti­ple col­ors and only appear green. With our iris pho­tog­ra­phy you can see that often the main col­or is blue. In this cas­es there is a yel­low ring close to the pupil.
Due to the fact that there are no true green pig­ments the eyes can appear in many col­ors depend­ing on the sur­round­ing light col­or. 
But of course there are tru­ely green eyes but they are very rare. Only 1,6 % of the worlds pop­u­la­tion has a green iris.  The biggest part of these humans one can find in east­ern Europe, in the Baltic and in the Russ­ian speak­t­ing part of the world as well as part­ly in Ger­many. 
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The Structure of the iris

…does not change after birth.
The col­or how­ev­er  can change in the first 12 months in some cas­es as late as in teenage years.
While a fin­ger print has 40 unique iden­ti­fi­ca­tion fea­tures a iris con­tains 256.
Iris
Fin­ger Print
  • Megapix­el

By the way…

… men see dif­fer­ent then women: They see a bit more blueish, bet­ter see mov­ing objects but can‘t see con­trasts as well.

… women how­ev­er see more shades of green.

… that 6 of 10 peo­ple in Ger­many wear glass­es or con­tact lens­es.

… het­e­rochro­mia is when one per­son has two dif­fer­ent eye col­ors. It is very rare and occurs in only 1 of 4 mil­lion cas­es.
…the mus­cles which are mov­ing the eyes are using  1/4 of the total ener­gy of the body.

… the res­o­lu­tion of the human eye equals 576 megapix­el.

  • Megapix­el