what does it mean when your eyes are not dilated?
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The pupil is the part of your eye that controls how much light gets in. In bright light, your pupils get smaller (constrict) to limit the amount of light that enters. In the dark, your pupils get bigger (dilate). That allows more light in, which improves night vision.
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Usually, the pupils in each eye dilate or constrict at the same time. When they do not, the pupils may appear to be different sizes. The medical term for pupils of different sizes is anisocoria. Anisocoria is a symptom of many conditions but is not a condition on its own.
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Dilated pupils can occur with any type of anxiety, but are most common during periods of intense anxiety that occur in the following conditions: Panic Disorder/Panic Attacks.
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This may be caused by an injury, psychological factors, or when someone takes certain drugs or medications. Doctors sometimes refer to more pronounced mydriasis, when the pupils are fixed and dilated, as “blown pupil.” This condition can be a symptom of an injury to the brain from physical trauma or a stroke.
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Some people feel comfortable enough to drive immediately after their eye exam. However, doctors may recommend avoiding driving while the eyes remain dilated, especially if the person has not experienced the effects before.
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Red eye is caused by the dilation of tiny blood vessels in the eye. Blood vessels that are normally invisible or nearly invisible can suddenly become swollen. Thus, red veins become visible in the eye.
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What causes eyestrain? There are a number of factors that can cause eyes to feel strained, such as lack of sleep, crying, exposure to very bright light or prolonged periods of intense focus while driving, reading or working at the computer.
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Squinting, frequent headaches, rubbing your eyes, and fatigue are all signs you might need glasses. Not wearing glasses also poses an interruption to daily life as you might bump into or trip over things, be unable to see far away or up close (more on that later), or have trouble reading or seeing at night.
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But your eyes will be sensitive, and your vision will be blurry. Protect your eyes from the sun by wearing sunglasses. Don't drive for several hours after your eyes have been dilated, unless your doctor says it's okay.
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Particularly if lazy eye is detected early in life and promptly treated, reduced vision can be avoided. But if left untreated, lazy eye can cause severe visual disability in the affected eye.
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Dilated Pupils (Mydriasis): Symptoms & Signs If the pupils are dilated due to an abnormal response, they may remain dilated even in the presence of sunlight or strong light. Injury to the brain and taking certain drugs are common causes of abnormally dilated pupils.
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A "lazy eye" is a childhood condition where the vision does not develop properly. It's known medically as amblyopia.
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can't see. Not being able to see, or having your vision or view obscured, can mean: There's something you're feeling unable to understand or see clearly in your life—perhaps a problem you can't see a solution for. You're feeling something is hidden from you, or perhaps that someone is hiding something from you.
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Ocular hypertension means the pressure in your eyes — your intraocular pressure (IOP) — is higher than normal. Left untreated, high eye pressure can cause glaucoma and permanent vision loss in some individuals.
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Doctors sometimes refer to more pronounced mydriasis, when the pupils are fixed and dilated, as “blown pupil.” This condition can be a symptom of an injury to the brain from physical trauma or a stroke.
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Uneven eyes are typically something you're born with or can be caused by aging, injury, surgery or eye disease. Believe it or not, even when you think that your eyes are uneven, in most cases, they are pretty much the same size. What you're seeing might be an illusion.
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While sunken eyes are usually just a result of aging, dehydration, or not getting enough sleep, they could also be a sign of a medical condition. Read on to learn about the causes of sunken eyes, the treatment options, and how you may be able to ease sunken eyes with simple home remedies.