Blue Eye
 Blue eye color is determined by a low amount of a pigment called melanin that is present there in the iris of the eye. Now, how much this amount is, is determined by the genes controlling pigment production. When the eye is brown, it has a good amount of this pigment, whereas a blue eye has less of it.  Brown was considered to be the most dominant eye color in any gene till quite recently. But new studies have put a question mark to it. Now, how the eye color genes exactly interact with one another; through recessing, dominating, expressing themselves midway, or simultaneously full together; is not absolutely clear yet. It seems there are some missing links yet to be discovered in order to understand the exact pattern of the eye color inheritance to be determined genetically. Eye color genes produce enzymes which decide for the amount of melanin in the iris. At the physiological and the anatomical level, the eye color is determined by the amount of a dark brown pigment - named melanin - present in the iris of the eye. 
If the amount is scarce, it ends up into a blue eye.  Blue eye is quite common, mainly in the people of:
Melanin production keeps increasing till 6 years of age. Hence a baby having a blue eye - that is sometimes the case with young babies - may get its hue changed by that age. With in-between amounts of melanin, it may turn into a gray eye, a green eye, a hazel eye or a light brown eye.  If the amount is nil, the eye color takes its hue from the blood vessels in the back of the eye and appears to be a pink eye. Albinos are the example of this. A purple eye is a mixture of a pink eye and a blue eye, giving its hue as violet; like Elizabeth Taylor has! I invite you to subscribe to my weekly E-zine titled Third Eye-zine. This weekly E-zine publishes rare, revolutionary articles which are of real use in the day-to-day life of a common man, covering topics concerning the effect of third eye opening on health, diseases, personality, performance, efficiency, relationship, sex, mind, creativity, passion, business, management, and energy level of a person; apart from its effect on vision correction. A not-to-be-missed opportunity! Subscribe to it here: I also invite you to subscribe to my Third Eye Blog - no need to provide your e-mail address here. This RSS feed keeps you informed about new developments taking place on this site. It also harbors my weekly Third Eye Bloglet narrating My Story : My Date with My Body - a bloglet about vision, mind, sex, science, and society. A real interesting reading! In order to subscribe to the blog, right-click on the orange RSS button (see buttons up to the left) and then paste the URL into your RSS reader. Or click on add to My Yahoo! button or My MSN or Add To Google button if you keep a personalized home page there. If you are not sure what RSS or blogging is all about, click on What's an RSS Feed? here:
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