eyes are sensitive to sunlight?
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Photophobia, or light sensitivity, is an intolerance of light. Sources such as sunlight, fluorescent light and incandescent light all can cause discomfort, along with a need to squint or close your eyes. Headaches also may accompany light sensitivity. Light-sensitive people sometimes are bothered only by bright light.
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Most snakes examined in the study are sensitive to UV light, which allows them to see well in low light conditions. ... These species have probably also tuned the pigments in their retina so that they are no longer sensitive to the short-wavelength UV light.
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There are a number of reasons why a person might have eyes sensitive to light and watery. Computer fatigue is a very common reason, allergies, certain medications, illnesses, and neurological conditions. Light sensitivity is also one of the most common complaints of people who get migraines.
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fish don't have eyelids, so they can be very sensitive to light. some fish are more sensitive than others, but you may have a light that's too bright for your particular fish.
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Another frequent cause of increased light sensitivity and computer monitor "fatigue" is dry eye. When the surface of the eye is not well lubricated, the cells on the surface of the cornea die and sensitive corneal nerves are exposed. This is a common and frequently unrecognized cause of light sensitivity.
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If you start to experience light sensitivity, it's important to see an optometrist (also known as an optician) to have your eyes checked. An optometrist will be able to examine the health of your eyes to check for any underlying eye condition which could be causing your light sensitivity.
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The more melanin in your iris, which is the colored area surrounding the pupil, the darker your eye color will be. ... Light eyes such as blue, green or grey are more sensitive in sunlight. Most people are sensitive to sudden light, such as walking out of a dark hallway on a sunny day.
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Exposing your eyes to UV rays can harm your vision and cause a number of eye issues such as cataracts, corneal sunburn, macular degeneration, pterygium and skin cancer around the eyelids. ... As a result, they are at great risk of experiencing adverse effects of over-exposure to UV light.
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Research Findings on Bright Lights and Eye Damage If the light has the intensity of sunlight, short exposure times can cause damage. If the light is not quite so bright, chronic exposure over days to weeks can cause permanent damage. ... Some studies have suggested that people with blue eyes have the highest risk.
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Without a doubt, being subjected to bright light—whether from fluorescents or screens—can create blurriness in the visual field. In addition, sensitivity to light often presents as a co-occurring symptom with cloudy or fuzzy vision, usually due to an underlying disorder like migraine or dry eye.
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People who have light-colored eyes are at a slightly higher risk of experiencing light sensitivity than people with darker eyes, especially dark brown eyes. This is because the melatonin in eye color can protect against some ultraviolet (UV) light and reduce how impactful bright light can be on the retina.
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According to Medline Plus from the National Library of Medicine, some causes of sensitivity to light include: Eye inflammation. Corneal abrasion or ulcer. Wearing contact lenses too long or lenses that fit poorly.
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Rats are very sensitive to light; bright light can cause stress and harm their eyes ¿ particularly albino strains (red-eyed white rats). The temperature and humidity of anywhere they¿re housed to be appropriate.
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Why Sensitivity to Light Accompanies Dry Eye Medical researchers do not have an exact understanding of why photophobia occurs in dry eye patients, but some have suggested that it stems from inflammation of the trigeminal nerve near the cornea.
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['strabismus (crossed eyes)', 'photophobia (sensitivity to light)', 'nystagmus (involuntary rapid eye movements)', 'impaired vision or blindness.', 'astigmatism.']
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In someone who is light sensitive, any type of light source (sunlight, fluorescent light, incandescent light) can cause discomfort. Photophobia typically causes a need to squint or close the eyes, and headache, nausea, or other symptoms may be associated with photophobia. Symptoms may be worse with bright light.
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Photophobia is not an eye disease, but a symptom of many conditions such as infection or inflammation that can irritate the eyes. Light-filtering shields are helpful if you are sensitive to sunlight or even strong indoor lighting.