NATIONAL DIFFERENT COLORED EYES DAY
On July 12th, National Different Colored Eyes Day recognizes those who have two different colored eyes. Many people captivate us with their eye color; others do so because they have two different colored eyes. This day celebrates them in all their uniqueness!
Having two different colored eyes is a condition called Heterochromia. There are three types of Heterochromia:
- Complete heterochromia – one iris is a different color from the other.
- Partial heterochromia or sectoral heterochromia – part of one iris is a different color from the rest of the iris.
- Central heterochromia – an inner ring is a different color than the rest of the iris.
The concentration and distribution of melanin are what determines the eye color, specifically the color of the irises. The affected eye may be hyperpigmented (hyperchromic) or hypopigmented (hypochromic). The excess of melanin indicates hyperplasia of the iris tissues, whereas a lack of melanin indicates hypoplasia.
Most cases of heterochromia are hereditary, caused by a disease or syndrome or due to an injury. However, it is possible that just one eye may change color following certain diseases or injuries.
Two syndromes that may cause different colored eyes are mosaicism and chimerism. Mosaicism involves two or more populations of cells within a single individual. Chimaerism occurs when two or more fertilized eggs merge producing a single individual.
Other symptoms that may be associated with heterochromia include patches of lighter skin or deafness. Infants who develop different colored eyes after birth should be evaluated by their pediatrician to be sure no additional care is necessary. When eye color changes occur due to injury or are sudden, seek a doctor’s care. Sometimes the condition can be severe.
A few celebrities are known to have two different colored eyes include David Bowie, Christopher Walken, Dan Aykroyd, Jane Seymour and Mila Kunis.
HOW TO OBSERVE NATIONAL DIFFERENT COLORED EYES DAY
The eyes are the windows to the soul. Who do you know with differing eye color? Those who have two different eye colors, share your fascinating eyes. Post on social media using #DifferentColoredEyeDay.
HISTORY OF NATIONAL DIFFERENT COLORED EYES DAY
We were unable to locate the creator of National Different Colored Eyes Day. While the origins of the day are unknown, its focus has been to raise awareness and to celebrate the unique qualities of those with different colored eyes. Depending on the degree of heterochromia, many may go through life with little to no effect. While still others may have complications from a confusing condition that has impacted them all their life. Perhaps they never had any answers, but the clue could always be found in the colors of their eyes.
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