Gritty eyes can feel scratched or irritated without there being anything in the eye to cause discomfort. Possible causes include dry eyes, blepharitis, photokeratitis, and more. Treatment can depend on the cause. Gritty eyes, or foreign body sensation, gives a person the feeling that there is something in their eye when there is not. Numerous...
Tag: <span>eyes</span>
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COVID VIRUS CAN INFECT YOUR EYES AND DAMAGE VISION – virology
MAY 15TH, 2024 POSTED BY ROCHITA GHOSH-U. MISSOURI COVID-19EYESRETINAVIRUSESVISIONUNIVERSITY UNIVERSITY OF MISSOURI The virus that causes COVID-19 can breach the protective blood-retinal barrier, leading to potential long-term consequences in the eye, new research shows. The blood-retinal barrier is designed to protect our vision from infections by preventing microbial pathogens from reaching the retina where they...
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In fight against brain pathogens, the eyes have it
Peer-Reviewed Publication YALE UNIVERSITY New Haven, Conn. — The eyes have been called the window to the brain. It turns out they also serve as an immunological barrier that protects the organ from pathogens and even tumors, Yale researchers have found. In a new study, researchers showed that vaccines injected into the eyes of mice...
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The first signs of Alzheimer’s appear in the eyes. Here’s what they are
By WALLA! Published: MAY 2, 2023 09:04 An illustrative image of an eye(photo credit: Wikimedia Commons) The eyes are more than a window to the soul; they’re also a reflection of a person’s cognitive health. “The eye is the window into the brain,” ophthalmologist Dr. Christine Greer, Director of Medical Education at the Institute of Neurodegenerative Diseases in...
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How our eyes can change colour throughout our lives
By Martha Henriques 29th September 2022 Through apparently spontaneous change or through mishap or illness, our eyes can change colour in surprising ways. The first pictures of the new-born baby that flashed up on our family chat showed a charming, surprised-looking face with wide, slate-grey eyes – similar in shape to his father’s brown eyes,...
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When it comes to ADHD and ASD, the eyes could reveal all
by University of South Australia Group differences in the b40 and op80 DWT coefficients across the five flash strengths. The ADHD group exhibited higher b40 and op80 energy levels across the flash series. In contrast the difference between ASD and controls was more significantly reduced for the op80 energy compared to the b40 at the...
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Does our life flash before our eyes during death?
by Frontiers Credit: Pixabay/CC0 Public Domain Neuroscientists have recorded the activity of a dying human brain and discovered rhythmic brain wave patterns around the time of death that are similar to those occurring during dreaming, memory recall and meditation. Now, a study on these findings published in Frontiers in Aging Neuroscience brings new insight into a possible...
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Study: Our eyes and brain work together to create a ‘pipeline’ of meaning
by University of Birmingham Credit: CC0 Public Domain Humans read by ‘pre-processing’ written words to create a pipeline of meaning, according to new research at the University of Birmingham. A study, published in Nature Communications, shows that each pre-processing judgment can take place extremely rapidly—within just 100ms after the eye lands on the previous word. The neuronal activity...
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ADHD and the eyes: What is the link?
Some eye conditions are more common in people with attention deficit hyperactivity disorder (ADHD). These include refractive errors, such as astigmatism, and convergence insufficiency, which makes it difficult for the eyes to remain aligned when looking at nearby objects. However, visual impairments are not symptoms of ADHD. While there appears to be an association between...
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Color perception – how do the eyes see colors?
“Colors, like features, follow the changes of the emotions” – Pablo Picasso The world is colorful. Thanks to the visual stimulus receptor – the eye filled with light and color receptors – people are able to see the palette of hues. Did you know that some of us see colors differently than others? Not everyone...
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