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Doctor insights on: Is There Any Connection Between Blue Eyes And Alzheimer's Disease

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Can there be any connection between blue eyes and Alzheimer's disease?

Can there be any connection between blue eyes and Alzheimer's disease?

No: It's not proven that the color of one's eyes has to do with alzheimer's disease development. ...Read more

Dr. Maureen Nash
516 Doctors shared insights

Alzheimer's Disease (Definition)

A progressively worsening brain disorder that affects memory. Symptoms usually begin with increasing forgetfulness and confusion and can progress to the inability to ...Read more


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Alzheimers disease, dementia, poor memory, mci -- what causes do they have in common?

Alzheimers disease, dementia, poor memory, mci -- what causes do they have in common?

Memory deficits: There is a chemical in the brain called acetylcholine which is deficient with aging, and that causes deficits in cognitive functions. ...Read more

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There is Excessive Hair loss from my chest and behind and below the neck. What could be the reason for this? And I always forget where I kept my mobile at home. Is this a alzheimers disease?

There is Excessive Hair loss from my chest and behind and below the neck. What could be the reason for this? And I always forget where I kept my mobile at home. Is this a alzheimers disease?

Body hair loss: And memory issues need to be checked out by your doctor. Please see him/her. Alzheimer's is very unlikely. The hair loss suggest the possibility of a thyroid imbalance but your doc will let you know. Keep your mobile in the same place all the time and you will be less likely to loose it. Peace and good health. ...Read more

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Can you tell me in human beings, brown eyes are usually dominant over blue eyes. Suppose a brown-eyed woman whose father had b?

Can you tell me in human beings, brown eyes are usually dominant over blue eyes. Suppose a brown-eyed woman whose father had b?

Eye color: Is genetically complex with a number of factors that determine the actual color appearance. However the brown gene is dominant and the blue gene is recessive. Since only one dominant gene is required for brown eyes, then brown eyed parents can produce blue or brown eyed children, while two blue eyed parents should produce only blue-eyed children. ...Read more

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Are blue eyes or brown eyes more sensitive to sunlight?

Are blue eyes or brown eyes more sensitive to sunlight?

Either: Patients with both blue and brown eyes can be sensitive to light, although, in general, people with lighter eyes tend to be a bit more light sensitive. ...Read more

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What exactly does it mean to have both green and blue eyes?

Eye color: Some people's irides have a mixture of browns and blues that cause their eyes to appear blue when they wear blue clothes and green when they wear green. ...Read more

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Why would I be the only one in my family with grayish dark blue eyes?

Why would I be the only one in my family with grayish dark blue eyes?

Genetics: There are at least five different sets of genes that control eye color. Chances are if you researched your family history someone somewhere down the line had similar eye color. ...Read more

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I used to have blue eyes now they're green/grey. What made them change?

I used to have blue eyes now they're green/grey. What made them change?

Increased pigment: Eye color can become dark as the amount of pigmented cells in the eyes increases over time. In the vast majority of people with this, it is normal. A few medications, especially prostaglandin glaucoma drops, can cause this change as well. ...Read more

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Are blue eyes more sensitive to light?

Are blue eyes more sensitive to light?

Yes: Blue eyes have less pigment in the iris and therefore transmit light to the retina easier, increasing light exposure and sensitivity. Not all blue-eyed people are abnormally sensitive to light. Adaptation can happen, as well as the wearing of sun glasses for protection and comfort. ...Read more

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Can african americans have natural blue eyes?

Can african americans have natural blue eyes?

Yes: If there is gene on both sides of the parents (even if they have brown eyes they both can carry a recessive blue eye gene) and the child gets both these recessive genes (one from each parent), then they get blue eyes. ...Read more

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Can a baby get blue eyes if the parent wears blue contacts?

Can a baby get blue eyes if the parent wears blue contacts?

No.: The color of a parent's contacts does not, in any way, affect the eye color of their child. Inheritance of eye color is complex and determined by the parents' genetics, that is, their natural eye color. ...Read more

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Does latisse (bimatoprost) cause blue eyes to turn brown?

Yes it can: Latisse (bimatoprost) is in the postaglandin analogue drug class. These drugs were invented to treat glaucoma by lowering eye pressure. Side effects growth of eyelashes, red eyes, and redness of the eyelids. They can also cause reactivation of herpes virus in the eyes, leading to inflammation and loss of vision. Long term use can cause increased pigmentation of the iris, making blue eyes brown. ...Read more

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Is it unusual to have blue eyes if neither of your parents do?

Is it unusual to have blue eyes if neither of your parents do?

Not really: The genetics of eye color is complex but my understanding is that brown is dominant over blue which is recessive. Each parent contributes one copy of one of a pair of genes. If both parents have brown+blue gene they will have brown eyes but each may pass on the blue gene to the infant resulting in expression of blue eyes. One brown gene dominates and produces brown eyes in most cases. ...Read more

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Blue eyes on a kid with 2 brown eyed parents. How is this possible?

Blue eyes on a kid with 2 brown eyed parents. How is this possible?

Easy one: Brown gene dominates over blue so parents only need one of 2 genes to be brown. Blue eyed infants must get one blue gene from both parents, so in this case both parents carry one blue gene. Nothing spooky here, just basic genetics. ...Read more

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How can a child have blue eyes when both parents have dark brown eyes?

How can a child have blue eyes when both parents have dark brown eyes?

Brown dominant: Two brown eyed parents that produce a blue eyed child are both carriers of the blue eye recessive gene. Brown dominates. They both have bb for eye color. This means a 1/4 chance for blue, a 50% chance for bb carrier brown, a 25% chance for full bb brown. ...Read more

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Is it true that to produce a blue eyed baby, both parents must have blue eyes?

Is it true that to produce a blue eyed baby, both parents must have blue eyes?

No-many variables: You get 1 eye color gene from both parents. Brown dominates, so they could be brown with 1 brown & 1 blue gene (Bb) or 2 brown genes (BB).A blue eyed parent would only have blue genes (bb).Two Bb brown eyed parents could conceive blue eyed babies every time but statistically only 25% is expected. A BB brown and bb=blue eyed parent would have all brown eyed babies. Two bb blue eyed parents have blue ...Read more

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Sister has brown eyes, other two siblings have blue eyes. What gene is dominent?

Sister has brown eyes, other two siblings have blue eyes. What gene is dominent?

Brown over blur: The inheritance of eye color is somewhat complex but when it comes to brown v. blue --- brown is dominant over blue. In your family, Mom and Dad probably have brown eyes but carry one gene for brown and one for blue. There is a 25% chance of a child in this mix with blur eyes. All other combinations will be brown. It is a matter of statistics. ...Read more

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Is it possible to have brown eyed parents and grandparents, and yet have blue eyes yourself?

Is it possible to have brown eyed parents and grandparents, and yet have blue eyes yourself?

Blue requires 2: Dominent genes (a) require only one coded gene from a parent to express a color, while a recessive gene (a) requires a pair. At conception you get genes from both parents. Daddy brown eyes aa or aa donates one (a or a)& mommy brown eyes aa or aa donates the other. The baby could have aa, aa, or aa. If aa then eyes are blue. If you have blue eyes, your brown eyed parents were both aa (carriers of blue). ...Read more

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Why does a fetus at 32 weeks has blue eyes regardless of what it real color will be? What cause this phenomena?

Melanocyte migration: The melanocytes destined to migrate to the iris are not mature yet for several months after birth - which is why a lot of newborns have light-color eyes but they turn darker as they go past their first birthday. This is normal. ...Read more

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I have brown hair brown eyes, husband has blue eyes blonde hair fair skin, will baby most likely have brown eyes and brown hair?

I have brown hair brown eyes, husband has blue eyes blonde hair fair skin, will baby most likely have brown eyes and brown hair?

Difficult to say: The genetics of human eye and hair color are very complex--you can pin the odds down better the more genetic history of eye and hair color you can obtain--siblings, parents, aunts and uncles, grandparents, great-aunts and uncles. There are odds tables based on this information. Accurate prediction is possible with DNA analysis: 45 mutations in 12 genes for hair color. ...Read more

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Can camera flash change the baby's eye color? For e.g, can blue eyes turn hazel due to the use of flash while the baby's eyes are still developing?

Can camera flash change the baby's eye color? For e.g, can blue eyes turn hazel due to the use of flash while the baby's eyes are still developing?

No: A baby's eye color cannot be changed by a camera flash. The eye may darken normally during the first few months of life however. ...Read more

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I have light brown eyes, my mom has blue eyes, husband has blue eyes, blue eyes run in his family what are the chances of our baby having blue eyes?

I have light brown eyes, my mom has blue eyes, husband has blue eyes, blue eyes run in his family what are the chances of our baby having blue eyes?

50% per conception: If both your husband and mother have blue eyes and yours are brown, you are a carrier of a blue eye gene. Your brown gene dominates your blue, so yours are brown, but since dad can only donate a blue gene, your offspring will have 1 blue gene from him and either blue or brown from you. Your kids have equal chance of being blue or brown. ...Read more

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Why are blue eyes more sensitive to sunlight?

Why are blue eyes more sensitive to sunlight?

Yes: The iris is a barrier with an expandable hole in the middle through which light passes to the retina. Its function depends on blocking all light that doesn't enter the hole. All iris pigments leak a little light, called "straylight, " causing glare and mildly decreasing visual acuity. Blue pigment happens to leak the most light. Of more consequence is blue-eyed individual's skin photosensitivity. ...Read more

Blue Sclera (Definition)

The white outer layer of the eyeball can have a blue hue. One possible ...Read more


Blue Eyes (Definition)

Blue eyes- eyes that are blue have less pigmentation than other colors and ...Read more