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Why do my eyes turn red

A 38-year-old member asked:
Dr. Steven Machtinger
Allergy and Immunology 44 years experience
Increased blood flow: Because the surface of the sclera (the white part of your eye) is thin & translucent it appears red when blood flow is increased. Blood flow increases... Read More
Dr. Paul M Bonds
Ophthalmology 46 years experience
Conunctival redness: The sclera is white. It is never an other color (normally). The covering of the sclera is the conjunctiva which has vessels. It is these vessels that ... Read More
Dr. Payam Rafat
Podiatry 22 years experience
Many possible causes: There are many causes of redness of the eyes. Several types of inflammatory conditions, allergic reactions, detergents, chemicals, and sometimes bact... Read More

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A 49-year-old female asked:
Dr. Yale Kanter
Ophthalmology 61 years experience
Red eyes: It is possible this could be related to a change in tear secretion. Seeing an ophthalmologist to assess this and decide if drops are indicated would ... Read More
Dr. William Constad
Ophthalmology 41 years experience
Not likely ss stated: It would be difficult to explain why closing your eyes would make them red. More likelywhile sleeping your eyes are open slightly, allowing exposure w... Read More
A 44-year-old member asked:
Dr. George Yang
Ophthalmology 27 years experience
Depends: It really depends on how long it takes to become red and where you are when you take the sunglasses off. For example, if you are outdoors, and it hap... Read More
A 45-year-old member asked:
Dr. Randall Wong
Ophthalmology 33 years experience
Simple to diagnose: While i can't be sure without examining you, a likely cause could be that your eyes are simply drying out while your sleeping. Many people actuall... Read More
A 40-year-old male asked:
Dr. William Dieck
Ophthalmology 38 years experience
Sweat: You are probably having sweat, which is much saltier than normal tears drip into the eye. This hypertonic (salty) solution can inflame the conjunctiv... Read More
A 32-year-old member asked:
Dr. Stephen Kimura
Allergy and Immunology 35 years experience
Allergy or Irritant?: This could represent a contact allergic reaction due to preservative, and fragrances in the cosmetics. Even "hypoallergenic" products can cause a rea... Read More
A 16-year-old female asked:
Dr. Matthew Rauen
Ophthalmology 15 years experience
Irritation: The environment is filled with things that can irritate your eyes. Dry eyes (insufficient tears) can make these things cause more irritation as they ... Read More
A 24-year-old female asked:
Dr. David Lipkin
Internal Medicine 52 years experience
See answer: The eye is protected by being recessed in its boney socket. Generally, if vision is ok and there is no pain it's less likely any serious injury occurr... Read More
A 32-year-old member asked:
Dr. Tim Conrad
Ophthalmology 34 years experience
Yes: A little irritation and redness can occur with contact lens insertion and this is normal and expected. This should resolve within 10-20 minutes.
A 17-year-old female asked:
Dr. Colette Wiseman
Internal Medicine 14 years experience
Try eyedrops: It could be allergies to something at that particular location, or dry air. You could try some lubricating eye drops, or anti-allergy eyedrops (such ... Read More

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

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