Doctor insights on:
Depends: Depends on what you mean by light--if you mean blue or green eyes, never, unless their parents are of different descent. If you mean light brown vs dark brown, i don't think anyone knows. I have light brown eyes but my wife's are almost black. One of my two children has light brown, the other almost black. ...Read more
Visual DX : Hi, it’s hard to say without a picture but there is a great app that may be able to help you get a diagnosis without being seen in person by a dermatologist. The app is called VisualDX and is one of the best, if not the best out there. Many clinicians, including myself, use it. Just snap a photo and it gives you a list of possible diagnoses. Good luck! ...Read moreSee 2 more doctor answers
Recessive gene: Inheritance follows 2 basic patterns. Dominant occurs when one of a double gene pair dominates the other & produces the outcome. In this case brown eyes. Blue eyes requires both eye color genes be blue.Any ethnic group including asians & afro americans could have blue eyes if it entered the gene pool somewhere up the line. It could pass in many generations of brown eyed parents before expression. ...Read more
Might turn white: An advanced untreated cataract will eventually turn white in the pupillary space. If still untreated, some will dissolve and lose the white color but more often will rupture and set up a terrific inflammation inside the eye. In this era, cataract removal is so predictable and safe that advanced cataracts should be rare. ...Read moreSee 4 more doctor answers
No simple answer: To know the true answer, every human being in the world would have to have access to good health care, get a correct diagnosis as soon as the lesions appear, and everything be recorded. Being said, folks who are naturally darker-skinned are at greater risk for subungual and acral-lentiginous melanomas. Nobody knows why. Have any suspicious lesion of your own seen. ...Read more
?iris color: Perhaps you are noticing various color differences on the iris surface. Some irides have multiple colors (hazel) and depending on the balance of colors, your eyes may appear yellow-brown or golden. I'm not sure you are asking about the color you have or that it has changed, in which you would need an eye exam to know exactly what you are referring to. ...Read moreSee 2 more doctor answers
Heredity: We develop characteristics that reflect our genetic ancestry. Most caucasians lack a lid fold but not all. A good question would be what is the survival advantage of such a fold which occurs so commonly in asians. Some think it helps with harsh environments, but what do you think? ...Read more
3 weeks boy. White-blond hair. Pupils seem to be black, but has greyish ring in iris. Fluorescent light reflects off eyes. Has brown freckle. Albinism?
Oculocutaneous: Albinism is a group of 4 conditions, each caused by a specific gene mutation inherited in an autosomal recessive pattern. When both parents carry the gene mutation, each of their children has a 25% chance of having oca. See his pediatrician ; a pediatric ophthalmologist for diagnosis ; referral to a geneticist if he has it. Lack of melanin in the retina causes vision problems, so you need to know. ...Read more
Brown or blue: Assuming the brown eye woman is heterozygous (has a dominant and a recessive gene) there would be 50-50 chance of a blue eyed baby and a 50-50 chance of a brown eyed baby. If the woman had only the dominant gene of brown eyes there would be a 100% chance of a brown eyed baby. ...Read more
Very: It is the leading cause of blindness in people over 60 in the us, and its prevalence will increase as the baby boomers age. Fortunately, this is an active area of research and it is likely that new therapeutic options the more common (dry) types of amd will be on the horizon soon. ...Read moreSee 1 more doctor answer
Any: People with the "center brown" gene for iris color can have any color for the rest of their iris. ...Read more
What percent of light skinned red heads get skin cancer, compared to the average u.S. Population?
Red heads: Red hair is one of the risk factors that is a increased risk of melanoma over black or brown hair. Such risk factors are related to the genetics that red headed people are more likely to be fair skinned and their skin burns more easily than others. People with such risk factors (also many moles, northern europe decent (e.g. Fair skin), blue eyes, family history of melanoma) means that they should. ...Read moreSee 1 more doctor answer