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Doctor insights on: Eye Color Name Chart

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How is the snellen eye chart used?

How is the snellen eye chart used?

Snellen eye chart: A snellen eye chart is used to test vision at a standard distance. It is often used in eye clinics. ...Read more

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What causes peoples eye color to change?

What causes peoples eye color to change?

A few conditions: Generally, eye color becomes "locked in" by about 6 months to 1 year of age. The iris contains brown pigment, and the less pigment present, the lighter the eye color becomes. Diseases that damage the iris (inflammation, certain glaucomas...) can lighten it while tumors and freckles can darken parts. High corneal cholesterol can make the eye seem bluer. Any changes in eye color should be evaluated. ...Read more

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Can eye color change?

Can eye color change?

Unusual: Eye color change in adults can signal a specific type of glaucoma. But very often, it seems that the eye color lightens, but this is due to haze in the cornea that can come with aging. ...Read more

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When is baby`s skin color eye color hair color all determined?

When is baby`s skin color eye color hair color all determined?

At conception: When the sperm and egg combine their genetic material, the eye and skin color are determined. ...Read more

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How to change the colour of iris (pupils) eye ?

How to change the colour of iris (pupils) eye ?

Iris color: Buy a different color contacts. Otherwise, no chance! ...Read more

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How common is light eye color in oriental asians?

How common is light eye color in oriental asians?

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

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What color contact lens would look good on brown eyes?

What color contact lens would look good on brown eyes?

Many: Many colored contacts are nearly invisible on brown eyes, especially dark brown eyes. You can try on different colors to judge the effect during your contact lens fitting. Take a friend with you. It's fun! ...Read more

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How can you measure visual acuity w/ the snellen eye chart?

How can you measure visual acuity w/ the snellen eye chart?

Read smallest line: The snellen chart is a graded series of letters or numbers smaller as you go down. The uncorrected vision is the smallest line easily read with each eye. Your ophthalmologist will present you with lenses to improve the level of the smallest line to hopefully get you to 20/20 - the standard of normal. It is a subjective test requiring your active input. ...Read more

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Eyes changing colors, what is wrong?

Eyes changing colors,  what is wrong?

Not sure: If the colored part (iris) is changing colors this can be due to deposits on the peripheral cornea and can be normal. If the white part of the eye is getting more yellow, this can be due to systemic problems. Please see an ophthalmologist to check this out. ...Read more

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What's the difference between poor color vision and born with color blindness?

What's the difference between poor color vision and born with color blindness?

Degree: Colorblindness is not necessarily all or nothing. There are varying degrees- thats all. ...Read more

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How come black eyes don't cause permanent eye color changes?

How come black eyes don't cause permanent eye color changes?

The darkness of : Skin around the eyes that comes from bruising is eventually absorbed back into the body. ...Read more

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Heterochromic-inherited children eye colors, what does this mean?

Heterochromic-inherited children eye colors, what does this mean?

Heterochromatic eyes: There is no esoteric medical problem involved. It is considered a normal variant. ...Read more

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Eye squigly floater grows into 3 or 4 strands, normal?

Eye squigly floater grows into 3 or 4 strands, normal?

No : You need to see your eyecare doctor to evaluate this. People older do see floaters but not like what you describe. ...Read more

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64 y.O. Female. With transient 3-5 minutes) vision change: vibrating, black zigzag lines, glowing around periphery of both eyes. Not blurred x 3?

64 y.O. Female. With transient 3-5 minutes) vision change:  vibrating,  black zigzag lines,  glowing around periphery of both eyes. Not blurred x 3?

Most likely migraine: Visual events described as wavy, zigzag, saw toothed, jagged, scintillating, often are a result of a migrainal event that has stimulated the visual path in the brain. They may or may not be associated with headache, nausea, vomiting or other associated symptoms. To be sure see your eye md for an exam to make sure it isn't a retinal issue. ...Read more

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Someone became blind from cataract, would their eye color change?

Someone became blind from cataract, would their eye color change?

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 more

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What is "impaired color vision"? Something like color blindness?

What is "impaired color vision"? Something like color blindness?

Color perception: Color vision can be altered in the usual way by inherited defects in the color perceptive elements of the retina. But advanced retinal disease like diabetes can impair color recognition; and changes in the color of the lens, and a few odd types of strokes and optic nerve disease all can alter color recognition patterns. Your ophthalmologist can sort this out for you. ...Read more

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