What type of things contribute to eye color change?
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a detached retina---david bowie has that --and he has 2 different color yes from it
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I think its 3 to one since blue is a recessive trait compaired to brown or any other darker eye color since eye color is a mix of pigment and pattern.
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Eye color is the pigmentation and reflections of particles in your eye. Basically the lighter the eye the less pigmentation is in that eye.  BLue eyes have less pigmentation than brown eyes. The way that the color is reflected gives the different apperance of the eye color. \nMy eyes are green. They arecool.
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Anything with vitamin A in it. While it hasn't been proven to strengthen your eyesight, it will at least help maintain it.
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Hair color, eye color, and also skin color are determined by special proteins called pigments.  The pigments in your hair, eyes, and skin are encoded in your genes, which is was these traits are said to be genetic.  All molecules absorb some wavelengths of light and reflect others.  Pigments are typically complex molecules that reflect certain wavelengths in the visible spectrum and absorb others.  Different people have different color pigments because there are minor changes in the DNA sequences that code for the pigments which result in minor changes in the molecules themselves, which in turn change the wavelenghts of light that are reflected and absorbed.  If someone has blue eyes, it is because the pigments in their eyes reflect a lot of wavelenghts of blue light, and absorb most other colors.
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http://www.peacehealth.org/kbase/topic/detail/drug/hw155236/detail.htm  Certain medication can cause color change, usually darkening them.
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All eye color can change over time because of age or, unfortunately, disease. \n\nEye disease is a cause of color change. So, ask a doctor to examine your eyes if you notice a slow loss of color. The change could be due to Fuch's heterochromic iridocyclitis, Horner's Syndrome, and pigmentary glaucoma, says Brian DeBroff, ophthalmology professor at Yale University. \n\nAging, however, is the usual cause of color change over time. So, yes, Emily. Color can change as we age. It does so for 10 to 15% of the normal Caucasian population. These people's eyes change slowly over many years after they reach adolescence. \n\nHow and why eye color changes - Pigment in the stroma (the connective tissue of the front layer of the iris) gives the iris color. Iris color can lighten if the number of pigment granules in the stroma decreases or if the granules produce lighter pigment. (See figure.) The iris can also lose color if the stroma pigment degrades. \n\nEyes, unlike skin and hair, do not synthesize color pigment continuously. Instead, eyes retain the pigment granules and accumulate them in the iris stroma. So, if the pigment degrades, the eye color lightens.\n\nLikewise, eyes can darken if the number of pigment granules increase or if the granules make darker pigment.\n\nThat's how the color changes. Why does it change? Genetics is the key as experimenters learned by studying twins. They observed the eyes and skin of identical twins and non-identical twins of American Caucasians between the ages of 3 months to 6 years. \n\nBoth sets of twins showed a "darkening with age of both the hair and eye colour," says Sturm. The identical twins changed color together, at essentially the same rate. The non-identical twins changed color but at different rates, which indicates a "strong genetic influence in the timing of these colour changes."\n\nEye color probably changes for the same reason we have one head instead of two: genes. Genes determine all body characteristics — including changing eye color as we age.
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heterochromia\n\nhttp://en.wikipedia.org/wiki/Eye_color#Heterochromia
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There are many diseases, disorders, and age-related changes that may affect the eyes.\n\nAs the eye ages certain changes occur that can be attributed solely to the aging process. Most of these anatomic and physiologic processes follow a gradual decline. With aging, the quality of vision worsens due to reasons independent of aging eye diseases. While there are many changes of significance in the nondiseased eye, the most functionally important changes seem to be a reduction in pupil size and the loss of accommodation or focusing capability (presbyopia). The area of the pupil governs the amount of light that can reach the retina. The extent to which the pupil dilates also decreases with age. Because of the smaller pupil size, older eyes receive much less light at the retina. In comparison to younger people, it is as though older persons wear medium-density sunglasses in bright light and extremely dark glasses in dim light. Therefore, for any detailed visually guided tasks on which performance varies with illumination, older persons require extra lighting. [1]\n\nWith aging a prominent white ring develops in the periphery of the cornea- called arcus senilis. Aging causes laxity and downward shift of eyelid tissues and atrophy of the orbital fat. These changes contribute to the etiology of several eyelid disorders such as ectropion, entropion, dermatochalasis, and ptosis. The vitreous gel undergoes liquefaction (posterior vitreous detachment or PVD) and its opacities - visible as floaters - gradually increase in number.\n\nVarious eye care professionals, including ophthalmologists, optometrists, and opticians, are involved in the treatment and management of ocular and vision disorders. At the conclusion of an eye examination, an eye doctor may provide the patient with an eyeglass prescription for corrective lenses.
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light (or sunlight)\n\nlight makes polar bears clear hair shafts appear white\nlight makes your eyes water\nlight first thing in the morning...guy gets out of bed to pee and girl combs her hair\nlight makes celebrities look stupid since it shed light on their antics\nlight makes normal people look like celebrities by putting them in the spotlight\npancakes brown, they are no longer light\nexpose champagne to light and it bubbles\nif you squeeze a lightbulb, it pops\ncan't figure last line but know that staring at sunlight is very bad for your eyes
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There are also, rarely, some people whose eyes appear aqua or violet, as well as the pink-eyed albinos. Eye color is determined by the concentration and distribution of melanin in the iris, which affects how light is reflected by the iris. The limitations on eye color are probably the same as the limitations on skin color, which is all controlled by melanin.\n\nHere's a link to an interesting article on eye color.
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Eye color does not change with mood.  However, it is possible for some people's eyes (especially hazel) to change their apparent color depending on what color of clothing they are wearing or what type/brightness of light they are in because of what is reflected in them.
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my eyes are light brown.  almost hazel
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The Genetics of Human Eye Color\nCan a baby's eye color be predicted using the eye color of the parents, grandparents and siblings?\nEye color is a physical trait that is genetically determined. A favorite pastime for many expectant parents is documenting the eye color of grandparents and extended family members to attempt to predict the eye color of their baby. Any discussion of the inheritance of eye color, requires a review of genetics. In basic terms, eye color is determined by the amount of a pigment called melanin that is in the iris of the eye. Brown eyes have lots of pigment, blue eyes very little. The amount of pigment is determined by a number of genes controlling pigment production. Generally speaking, brown is dominant, meaning that if one parent has brown eyes and the other has blue eyes, the baby will most likely have brown eyes. But the situation is really much more complicated than that. For a more complete description, read on. \n\n\nWhat is a gene and what does it have to do with eye color?\nHumans have a diploid number of 46 chromosomes (23 pair) located in the cell nucleus. In the process called meiosis, sperm and egg cells are produced that have the haploid number (23) of chromosomes. During fertilization of the egg by the sperm the diploid number of 46 is restored. During the course of pregnancy, the fertilized egg (zygote) undergoes a complex series of changes including multiple cell divisions and differentiation of cells into the different organ systems. The result is a baby whose cells each have 46 chromosomes. One chromosome of each pair is inherited from the baby's father and the other from the mother. A gene is a length of DNA on a chromosome that does something particular for an organism. It is the basic unit of heredity, determining the observable characteristics, or phenotype, of an individual. The actual genetic makeup of an individual is referred to as its genotype. Genes are arranged in a linear fashion on the chromosome, much like beads on a string. The arrangement of genes along a chromosome is the same for both members of a chromosome pair. Therefore genes also occur in pairs. \n\n\nIf genes occur in pairs are both genes alike?\nGenes may occur in different forms called alleles so the appearance of any characteristic is dependent on the types of alleles present. A person who carries two of the same alleles is called homozygous for that gene. If two different alleles are present the person is heterozygous for that gene. In a heterozygous gene pair, one allele may be expressed over the other. The allele that is expressed is called the dominant allele. The allele that is not expressed is called the recessive allele. Dominance and recessiveness refer to which allele is expressed when the two occur together. There is nothing abnormal or defective implied in the terms. Examples of dominant/recessive inheritance are many of the famous genetic experiments conducted by Gregor Mendel. Mendel bred pea plants and found that crosses between homozygous purple flower plants and homozygous white flower plants always produced plants with purple flowers. In the process of incomplete dominance, a heterozygous gene pair produces a characteristic that is intermediate between the characteristic produced by the homozygous condition of each allele. An example of this occurs when a red snapdragon is crossed with a white one resulting in a plant with pink flowers. In a third process called codominance, the affect of each allele is expressed simultaneously. An example of codominance is the human AB blood group system in which a person with an A allele and a B allele will have type AB blood. \n\n\nI have heard that a single pair of genes determines what color my eyes are. Is this true?\nAt one time scientists thought that a single gene pair, in a dominant/recessive inheritance pattern, controlled human eye color. The allele for brown eyes was considered dominant over the allele for blue eyes. The genetic basis
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Many babies are born with blue eyes that later change color. this is what happened to me, they were blue now they are hazel. Eyes change color just as hair does, and yes you might have hazel eyes
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what color are your eyes?
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my eyes are brown and i wish that i could change them to blue.Hi Alysha well i will see you at grandmas house tomarrow ok.lol