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Doctor insights on: Iris

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Iris (Overview)

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.


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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 (Overview)

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.


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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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Treating Eye Infections (Checklist)

Throw away any used contact lenses
Once
Do not occlude or cover your eyes
Once
If you have pink eye, wash face towels separately with hot water
Once
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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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Treating Eye Injuries (Checklist)

Seek immediate medical attention
Once
If it's a chemical exposure, rinse your eye with water for 15 minutes
Once
Do not rub your eye
Once
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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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Treating a Lazy Eye (Checklist)

Wear glasses to protect your lazy eye
Once
Get an annual eye exam
Yearly
If your condition is severe, use low vision aids
Once
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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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Managing Eye Twitching (Checklist)

Reduce caffeine intake
once
Reduce alcohol intake
once
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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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Treating Pink Eye (Checklist)

Wash your hands frequently
Daily
See your doctor to determine if your pink eye is allergic, viral, or bacterial
once
Do not use someone else's eye drops
Once
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Please describe these white speckles in my iris?

Please describe these white speckles in my iris?

Normal variation: Iris color comes in a terrific variety - part of the beauty of being alive. Sometimes this is reflected with whitish deposits, really structural elements, on the iris surface. Enjoy them as part of human variation - they are not pathologic. ...Read more

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Can big black dots on my green iris mean anything?

Iris dots: Black dots on the iris are most likely due to iris nevi or pigment variation. Rarely, pigmented lesions of the iris can be neoplastic in nature. Many other issues can cause iris pigment changes including topical and systemic medications. The dark spots should be monitored closely. See an eye doctor. ...Read more

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My right iris is higher than the other. Is this normal?

My right iris is higher than the other. Is this normal?

Need exam: Hard to say if this is normal for you without an eye exam and more details. Be well. ...Read more

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I need advice on what to do with this ring around my iris?

I need advice on what to do with this ring around my iris?

Iris ring: Enjoy the condition, which is most likely congenital and not related to any major disease. However, see your local ophthalmologist before going further. Colored contact lenses may give some camouflage and ordered by your eye doctor. ...Read more

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What does it mean if the color of my iris turns to brown?

What does it mean if the color of my iris turns to brown?

Depends: Iris color can be affected by trauma, inflammation or bleeding in the eye, or possibly a growth on the iris such as a mole or even a melanoma. If you have concerns, you need to see an eye md. ...Read more

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What do you suggest if my right iris is higher than the other?

Do you see double?: If the right iris is higher than the other, the eyes would be out of alignment and two images would be seen. Is this because a lid on one side is lower than the other? Has there been some trauma in the past? Are the irises having a different pupillary size which gives it this appearance? You should have an ophthalmologist look at your eyes and see which pattern you have. ...Read more

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What does it mean when you have brown circles around your iris?

What does it mean when you have brown circles around your 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 are these white speckles in my iris and why are they there?

Normal variant: Iris come in many colors and patterns. Some have white deposits on the surface called brushfield spots. A few inherited diseases can cause iris spots. If you have good vision and perhaps have had one good examination by an ophthalmologist with all being well, then enjoy your spots and consider them a cosmetic advantage. ...Read more

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Can a damaged / torn iris be repaired yet? Build new or anything?

Can a damaged / torn iris be repaired yet? Build new or anything?

Repair possible: Irises do not spontaneously heal. If torn in a way that the iris looks bad, or admits light in a peculiar way, surgical repair is possible to suture the edges together and make a more normal iris. Sometimes the iris loses some or all of its structure and there are now synthetic irises that can replace the natural iris. ...Read more

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I have to change my iris brown colour to blue colour how can I do?

Disguise: You cannot change your natural eye color. You can wear a colored contact lens to change the color as a type of disguise. ...Read more

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Can you tell me what to do if I read somewhere, that an iris can break?

Read less: You have read something scary but unsubstantiated. The iris can be traumatized as part of unmistakeable trauma to the eye. But an iris cannot "break" in the usual sense of this word. Irises can malfunction and if yours in one eye does not behave like the fellow iris, then see an ophthalmologist for evaluation. ...Read more

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Why is there a blue ring around my iris? Should I be worried about this?

Why is there a blue ring around my iris? Should I be worried about this?

It's likely normal: A grayish blue ring covering the outer iris is most commonly caused by cholesterol which actually becomes deposited in the peripheral cornea, which is in front of the iris. It's called 'arcus senilis' and is usually normal. Because you are only 41, you should make sure your blood cholesterol levels are ok. ...Read more