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Doctor insights on: Blue Yellow Color Blindness Test

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Does yellowish sclera related to dark coloured urine and light grey stool?

Does yellowish sclera related to dark coloured urine and light grey stool?

SERIOUS ISSUE: True "yellow" eyes (sclera) need to be assessed for systemic jaundice which signifies liver disease ; need for medical evaluation. Your associated sx's are serious. Please seek out medical evaluation now...More commonly, a yellowish spot in the horizontal area is an actinic degeneration known as a pinguecula...Also pterygium, any eye care physician could quickly determine this with exam. ...Read more

Dr. David Chandler
78 doctors shared insights

Color Blind (Definition)

Ophthalmologist prefer to use the term color deficit as blindness conveys other meanings. Lowered color perception can be inherited (many forms), can result from advanced loss of retinal cells, inherited retinal disease, and some forms occur due to CNS injury. There are excellent tests for the various types and they can be functionally ...Read more


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Does yellowish sclera related to dark coloured urine?

Does yellowish sclera related to dark coloured urine?

Yes it can be: Bilirubin is a pigment that causes a yellowing of the skin (; whites of the eyes or sclerae) jaundice. Bilirubin darkens the urine. The two problems either relate to liver disease or hemolysis of red blood cells (bilirubin is found in them). Tests can be done to distinguish the source ; the history/exam would also be critical. See your doctor if not already doing so. ...Read more

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Whats ishihara color blindness test?

Whats ishihara color blindness test?

Color plates: The ishihara test plates are a series of dots of various colors with an embedded number or symbol which cannot be easily seen by the color deficient due to color confusion. They are the most commonly available test in ophthalmologists office although others are also available and some are better at separating the forms of color deficiency out. Ishihara is a good screening test. ...Read more

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What does orange, dark yellow urine indicates.?

What does orange, dark yellow urine indicates.?

Dehydration?: It may be a sign of dehydration. Did you take any medicine or vitamins? Sometimes, though less likely, it can be an infection too. ...Read more

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Blue ring around dark brown eyes a vision problem?

Blue ring around dark brown eyes a vision problem?

Probably not: This is most likely a deposit of lipid term 'corneal arcus'. It is benign and will not affect the vision. If the eye is red, painful, or the vision is changing rapidly, - there are some pathologic changes that can occur in this part of the cornea which will appear like a blue ring. These are rare but will need an ophthalmologist to look at them. ...Read more

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Can greyish green eyes change to blue?

Can greyish green eyes change to blue?

In short, not really: Eye color can change due to medication or disease. But the changes are usually from lighter pigment to darker. Some people as they age will report their eyes changing to blue when in fact the peripheral cornea acquires cholesterol deposits (arcus) that can give some people the impression their eyes are turning blue. ...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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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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What causes dark urine color?

What causes dark urine color?

Dark: Dehydration most commonly. It could be blood however or bile. Get it checked. ...Read more

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Blue grey eyes with yellow/golden ring around pupil, what is it?

Blue grey eyes with yellow/golden ring around pupil, what is it?

New?: You may have normal irises with peripupillary color that is different than the periphery. If you are otherwise healthy and without ocular injuries, surgery, eye medication or systemic disease that results in ocular complications (diabetes, connective tissue disease) your color of your eyes is most likely normal. ...Read more

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3 weeks boy. White-blond hair. Pupils seem to be black, but has greyish ring in iris. Fluorescent light reflects off eyes. Has brown freckle. Albinism?

3 weeks boy. White-blond hair. Pupils seem to be black, but has greyish ring in iris. Fluorescent light reflects off eyes. Has brown freckle. Albinism?

Oculocutaneous: Albinism is a group of 4 conditions, each caused by a specific gene mutation inherited in an autosomal recessive pattern. When both parents carry the gene mutation, each of their children has a 25% chance of having oca. See his pediatrician ; a pediatric ophthalmologist for diagnosis ; referral to a geneticist if he has it. Lack of melanin in the retina causes vision problems, so you need to know. ...Read more

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Can pyridoxine turn your urine a pinkish redish color?

Can pyridoxine turn your urine a pinkish redish color?

See a doctor: It is unlikely to turn urine pink/red. It is likely to cause bright yellow/orange urine. See your doctor for an exam and urine test asap. ...Read more

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What causes brown spots on blue iris?

What causes brown spots on blue iris?

Freckles?: Freckles and nevi are the usual pigmentations found on the iris. Also, hamartomas, brushfield spots, lisch nodules, inflammatory nodules, adenomas, xanthogranulas, melanomas, iris atrophy, stretch holes are among other iris lesions or spots that can occur but much less common. If your iris spots are new, have them evaluated by an eye md. ...Read more

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Sclera (white of eye) is a bluish grey color, should I be concerned?

Sclera (white of eye) is a bluish grey color, should I be concerned?

Depends: Thinning of the sclera can result in the pigmented layer of the retina showing through. Mild thinning is of no concern. Extensive thinning can be a problem. This usually appears very dark in appearance. ...Read more

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Does honey turn dark brown eyes to light brown?

Does honey turn dark brown eyes to light brown?

No: Honey has some interesting and varied health benefits but I know of no evidence it can change the color of your eyes. See http://www.mnn.com/health/fitness-well-being/stories/10-health-benefits-of-honey to learn what it CAN do... ...Read more

Dr. Damien Luviano
64 doctors shared insights

Blindness (Definition)

Vision impairment and blindness are conditions in which a person cannot see well or see at all, even with glasses or contact lenses. If a person's best vision (with correction) out of either eye is only 20/70 - 20/200, he is impaired. If he can see no better than 20/200 or his visual field is no more than 20 degrees (severe "tunnel" vision), ...Read more


Dr. Tim Conrad
442 doctors shared insights

Loss Of Vision (Definition)

Loss of vision reflects the inability to perceive images. Such a phenotype can be due to occlusive or barriers to light (e.g. cataracts) through retinal alterations (e.g. wet macular degeneration) to optic nerve lesions (e.g. from a pituitary adenoma) to central nervous system ...Read more