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Doctor insights on: Colobama Of The Iris

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What does iris do?

What does iris do?

Light control: The iris, a circular (donut shaped) muscular ring of tissue in the front of the eye, opens and closes in response to the degree of outside light. It also functions as a portion of the focusing capacity of the eye. It's other role is as a part of your allure given its color and structure. ...Read more

Iris (Definition)

The iris is a structure within the eye that helps reduce the amount of light that reaches the retina. The iris is known as the colored part of the eye, and can be blue, brown, or any color or combination of colors in between. The iris is the portion of the eye that ...Read more


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Why is my outer iris is dark?

Why is my outer iris is dark?

Multicolored iris: It's very common for people to have variable colors in their iris. Uncommonly , the change in colors can be due to a mole on your iris. If the colors appear to be changing over time, it's important to have your ophthalmologist evaluate this further. ...Read more

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How big is the iris in millimeters?

Iris size: Iris outer dimensions= 11 x 12 mm; iris inner dimensions= 3 mm. ...Read more

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What can cause a ring around my iris?

Probably cornea : The ring is probably around the cornea,appearing like it is around the iris. It is called an arcus and is benign. Can represent high cholesterol on occasion. ...Read more

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Why is the outside of my iris darker?

Why is the outside of my iris darker?

Just color: Is it uniformly dark and symmetrical? Then do not worry, its just the coloration of the iris. The outside is thicker and denser. If you have just localized darkness then you need to see an ophthalmologist. ...Read more

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What is the dark line around the iris?

What is the dark line around the iris?

Normal: If present in both eyes it is a normal variation of pigmentation of iris. If it is new and increasing there could be some diseases that cause deposits on the cornea that may look like dark lines on the iris. ...Read more

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What does the ring around the iris mean?

Ring around iris.: Most likely the "ring" in in the cornea and represents a deposition of lipid which is very common as we get older, it has been named " arcus senilis". However there are other pathological states principally affecting the liver that may cause such ring, example being the keyser-fleisher ring, a deposition of copper in the cornea. It is commonly seen in wilson's disease and obstructive liver disease. ...Read more

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Is a brown ring supposed to be around my iris?

Is a brown ring supposed to be around my iris?

Could be normal: If you see this in both eyes, this is likely a normal variant, the way your eye pigmentation is patterned. If only in one eye, have an eye examination to get a proper diagnosis. ...Read more

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What is the definition or description of: iris?

Colored part of eye: The iris is a structure within the eye that helps reduce the amount of light that reaches the retina. The iris is known as the colored part of the eye, and can be blue, brown, or any color or combination of colors in between. The iris is the portion of the eye that responds to light stimulation. ...Read more

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