The iris of your eye is located behind the cornea, which is the outer layer of the eye, and in front of the lens. Genetics Humans inherit two copies of the gene for eye color, one from each parent. Brown is the dominant gene, which means the person may have two brown genes, or on...
Iris This is the colored part of your eye. Irises are most commonly brown, green, blue, or hazel. But the iris doesn’t just look pretty: It also controls the amount oflightthat enters your eye. Pupil This is a sort of hole in the middle of your iris. It lets light into your eye...
People like to speculate about what youreye colorsays about your personality. However, researchers are only starting to discover the relationship between eye color and overall health. People with light-colored eyes, such as grey, blue or green, run a higher risk of certain types of melanoma, a...
The other type of eye freckles are called iris freckles. These are tiny flecks in the colored part of your eye. They’re more like the freckles on your skin than moles -- they’re only on the surface of your eye and don’t affect its shape. About half of all people have iris freck...
Genetic research says that eye color islargelydetermined by as many as 15 genes passed to the individual because of a dominant gene. The pigmentation of the iris and the dispersion of light around the iris are other factors that influence eye color. ...
The location of the Iris Nebula in Cepheus from my backyard. Deep Space Objects Cepheus has the hyperluminous quasar S5 0014+81, which hosts an ultra-massive black hole in its core. It is reported at 40 billion solar masses, about 10,000 times more massive than the central black hole of...
smooth rotation of the eyeball about a virtually fixed point, the centre of rotation. The protrusion of the eyeballs—proptosis—inexophthalmicgoitre is caused by the collection of fluid in the orbitalfatty tissue. Theeyelids eyelidUpper and lower eyelids....
the centre. Loops have concentric hairpin or staple-shaped ridges and are described as “radial” or “ulnar” to denote their slopes; ulnar loops slope toward the little finger side of the hand, radial loops toward thethumb. Loopsconstituteabout 65 percent of the total fingerprint patterns; ...
How many colors can the human eye see? A About 4 dozen B Hundreds C Thousands D Millions 02 How often do people blink? A 5 to 10 times per minute B 15 to 20 times per minute C 20 to 30 times per minute D More than 30 times per minute 03 The iris of the eye ...
anything about eye health or disease, and yet more than 90 percent have seen a health care provider," Sieving said. "We need to educate these doctors, nurses, and other health care professionals with the tools they need to educate their patients on how to better maintain their...