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In science years ago, I was taught that genes for brown eyes are "dominant" genes, so most people will have brown eyes (or variants of brown, such as green). See these articles that I found doing a quick search (and other articles you may find online from searches):
http://www.thetech.org/genetics/ask.php?id=2
http://www.scienceblog.com/cms/all-blue-eyed-humans-have-common-ancestor-15361.html
The brown spot on the cornea could be due to a variety of reasons, such as an injury, a corneal abrasion, a corneal ulcer, a deposition of pigment, or a growth on the cornea. It is important to have a comprehensive eye examination by an ophthalmologist or optometrist to determine the cause and appropriate treatment for the brown spot.
they're probably UV burns. if they are, they'll be sore when you first notice them (like they eye is bruised), and they'll never fade or go away. wear sunglasses if you're going outside, even if it's overcast, or you could damage the eye even more and eventually lose your eyesight.
Brown spots on the white part of your eyes might be a melanoma or might be just a common spot. These spots are generally harmless and are not unusual unless they are cancerous.
Brown spots on the white of the human eye could be eye freckles. These freckles are exactly like the ones found on the skin.
if it is only you that has these brown spots i would go see a doctor :)
i have brown eyes and they have no spots if yours do then maybe there is something wrong with your eye
They are like freckles in the eye, it is a pigment. Don't worry, they are usually harmless but if your are worried, consult your doctor.
You will have to ask an eye doctor why you have a brown dot in your eye. It might be a freckle.
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Why do i have a white spot on my cornea?
A white spot on the cornea may be due to various reasons, such as corneal ulcer, infection, inflammation, or a foreign object. It is important to have it evaluated by an eye doctor to determine the exact cause and receive appropriate treatment.
The transparent portion of the fibrous tunic is the?
sclera
How does the thickness of the cornea compare to the thickness of the sclera?
The cornea is thinner than the sclera. The cornea typically measures around 0.5mm in thickness, while the sclera is much thicker at approximately 1mm.
What treatment is needed for brown spot in plum trees?
Brown spot in plum trees is typically treated by pruning out and removing infected branches, ensuring good air circulation around the tree, and applying a fungicide labeled for brown spot disease. It is important to follow proper cultural practices such as not overhead watering and ensuring the tree receives adequate sunlight.
What is a clear protective layer at the front of the eye called?
The clear protective layer at the front of the eye is called the cornea. It plays a crucial role in focusing light that enters the eye onto the retina, helping to create clear vision. The cornea is one of the most sensitive parts of the body and is essential for maintaining proper eye health and vision.
What causes a small white spot on a dog's cornea?
This is likely a corneal scar, possibly the result of an ulcer or an infection. However, if the white spot is actually behind the cornea, it is probably the start of a cataract in the lens. Regardless, unless the spot continues to get larger or you see signs of inflammation (redness, tearing, etc), you can probably ignore it.
What is the function of the brown spot of the frog?
The brown spot is the vestigial eye (represented by a white dot) located between the eyeballs.
What does the cornea do and what is it for?
what is the cornea and what does it do
What was the brown cow named in Old Yeller?
I think the brown cow was spot
What is the brown spot on gerbles?
It is the coloration of the fur.
What is a small brown spot on the skin?
That is a freckle.
What are the colors of giraffes?
They are yellow with brown spot
What is a brown spot on the skin called?
A mole
If you have brown spots on your tongue what does that mean?
what could a brown spot be under the tongue what could a brown spot be under the tongue
Is it normal to spot brown with implantation bleeding?
Yes
What is called the small brown spot on the skin?
A mole
What to do when the cornea is shattered?
Cornea transplant
