what causes the dark colouring around eyes when one is fatigued?
601328
When blood pools under your eyes from broken blood vessels or genetics, you get dark circles.
793101
Well your "eye" doesn't grow tired.  The muscles surronding your eyes do grow tired and fatigued like all muscles.  The way the body deals with this fatigue is to increase blood flow to those muscles and the capilaries in your eyes expand to facilitate this blood flow.
353366
you should drink more water,dark circles can be a sighn of toxins in yer  blood
128294
migraines? sun exposure? not sleeping on time? reading too much or watching too much telelvision? hmmm...caffeine withdrawal?
49886
Often enough the dark circles come from touching or rubbing your eyes with your fingers too often. If you get enough sleep, but still have dark circles, try no to touch your eyes for a few days, you'll notice the difference.
741090
If they form in a cicle around the coloured part of your eye - get a cholesterol test as they can be a sign of hypercholesterolaemia.  \n\nYou should  always  see your optician/opthalmologist/doctor about any unusual condition.
1071761
A lot of sleep, if you can't do that, use a cold eye mask in the morning and in the evening. A good eye cream also helps.
339587
Check your eye doctor. If it's only stress in the eye, give it a rest and presume your work after a nice break. Graphic designers get a break too. ;O
923490
Could be a lot of things.  Eye strain, low blood sugar, pregnancy.  Think about what and how often you've been eating.  Think about how much time a day you sit in front of a computer, reading, or driving, anything that could strain your eyes.  And also consider if you could be pregnant.  If you can't come up with anything there, talk to your doctor.\n\nGood luck and I hope you feel better soon!!!!
247669
Most dark circles are caused by the appearance of veins beneath the thin skin under our eyes. As we age and our skin becomes more damaged due to sun exposure, the skin under our eyes becomes thinner and more wrinkled, which allows the veins in this fatty padded area under the eye to appear more prominent. These veins also become more swollen and obvious in people with allergies. Similarly, people with a history of eczema, hay fever or asthma often develop dark circles. They do, of course, become more apparent with a lack of sleep. In some people with dark skin, circles under the eye may actually be due to superficial pigmentation of the skin and not the underlying veins. \n\nSo there are many reasons for dark circles and some articles I've read do attribute nutrition.  It's impossible to nail down a single reason however.
63893
This is what I found about eye color changes.  For complete articles see the web sites in sources below.\n\n"A surprising new study found that 10% to 15% of whites undergo changes in eye color during adolescence and adulthood, according to a report in the Archives of Ophthalmology."\n\n"The mechanisms that control these changes in iris color remain unknown. But researchers believe that it may be due to changes in production from melanocytes, cells found in the hair, skin and the eye that make melanin, a black or brown pigment.\n\nMore study is needed to confirm that the eye change is true age-related change in color and not due to illness or a flaw in the study. One report has suggested that macular degeneration, the leading cause of blindness in older adults, can be accompanied with a lightening of eye color with age, the authors noted."\n\n"Ask a doctor to examine your eyes if you notice a slow loss of color. The change could be due to Fuch’s heterochromic iridocyclitis, Horner’s Syndrome, and pigmentary glaucoma."
218077
Your vision in that eye might be getting weak. Mostly though, being too tired, or doing too much close work causes it. Try taking a break from reading, computer work, knitting, whatever....just take a break about every half hour or so to let your eyes rest. Be sure to get plenty of sleep too, that's the body's natural repairitive phase.
472666
yeah I agree it's a muscle spasm..coz it happens to me when I get stressed coz I sit all day on the computer...my doctor told me that the eye muscles are very weak..so they get affected easily by stress..just relax them a bit and take vitamins with Zinc
425177
I agree. Stress and/or fatigue.  I get it too.  It is most annoying and sometimes I don't even feel stressed or tired but my eyelid continues to twitch.  It went away while I was on holidays. It's nice to know I have fellow twitchers!
852639
man go see a doc .. white spots do not happen because of lack of sleep they are dark circles ... i think ur getting aneamic .. dunno ... just go see a doc ...
848680
I have had that problem.  I asked my optometrist about it once.  They told me that it is normal.  It's a combination of a couple of factors:\n1.  Your eyes are trying to accomodate for the lack of light by adjusting to the dark.  This causes your pupils to dialate, which causes blood to flow more rapidly through your eyes, which over-stimulates the optic nerves.\n\n2.  Minor visual hallucination:  Your brain is trying to fill the void with images, trying to make sense of the newly-limited input filtering in.
678822
Dark circles under your eyes means that your liver is not functioning well.  Probably not poorly enough to alarm a medical doctor, but enough to make you feel bad and to alert you to get plenty of sleep and extra water.\n\nThe liver repairs at night between 1 and 3 a.m. if you've had enough water to drink during the day.  If you're dehydrated, you'll wake up and have trouble getting back to sleep during that time.\n\nFenugreek and Thyme are good for respiratory ailments.  Headaches can be caused by dehydration or toxicity.  Make sure you have plenty of fiber in your diet.  Zinc is good for congestion and stuffiness.  Try Throat Coat tea or Gypsy Cold Care tea from Traditional Medicinals.\n\nWarm honey and lemon are great, too.  2 T honey, 2 T fresh lemon juice added to about 6 oz. warm water.