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  1. windows11 - 購物搜尋結果

    更多 windows11 相關商品

  2. www.webmd.comWebMD - Better information. Better health.

    The leading source for trustworthy and timely health and medical news and information. Providing credible health information, supportive community, and educational services by blending award ...

  3. www.webmd.com › eye-health › computer-vision-syndromeComputer Vision Syndrome: Causes, Symptoms and Treatments - WebMD

    2024年2月13日 · That can put a real strain on your eyes. Eye problems caused by computer use fall under the heading computer vision syndrome (CVS). It isn’t one specific problem. Instead, it includes a whole ...

  4. www.webmd.com › eye-health › eye-fatigue-causes-symptoms-treatmentEye Fatigue: Causes, Symptoms, and Treatment - WebMD

    • Overview
    • Eye Fatigue
    • Symptoms
    • Screen & Environment
    • Habits
    • Routine

    This article is about eye fatigue, a common condition that can be caused by intense eye use and digital devices. It provides information on the symptoms of eye fatigue, how to prevent it, and what to do if the problem persists.

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    Anything that requires intense eye use can cause fatigue, such as reading, writing and driving. Digital devices may also be linked to eye fatigue because you tend to blink less often when looking at a computer screen.

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    Sore or irritated eyes, trouble focusing, dry or watery eyes, blurred or double vision and increased sensitivity to light are some symptoms of eye fatigue. Lack of sleep may lead to repeated eye irritation.

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    Place your computer screen 20-26 inches away from your eyes and a little below eye level; regularly clean off dust and fingerprints from the surface; choose screens that tilt and swivel; use a glare filter for your screen; change lighting to get rid of glare and harsh reflections; use an adjustable chair; place a document holder next to your comput...

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    Try the 20-20-20 rule every 20 minutes by looking at something about 20 feet away for 20 seconds ; post a note "Blink" on your computer as reminder ; take regular breaks from computer work .

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    Apply warm washcloth soaked in warm water on tired dry eyes (keep closed) ; use artificial tears when they feel dry ; help prevent dry eyes while indoors by using air cleaner filtering dust & humidifier adding moisture .

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  5. www.webmd.com › covid › covid-19-symptomsCoronavirus Symptoms: Early Signs, Serious Symptoms - WebMD

    2023年11月10日 · They tend to include sore throat, runny nose, and other symptoms similar to a cold. They may not include lower respiratory tract symptoms such as wheezing, severe cough, or fever. COVID-19 ...

  6. www.webmd.com › sex › birth-controlDepo-Provera (Birth Control Shot) - WebMD

    2024年1月14日 · Depo-Provera is a birth control shot that can reduce the risk of unwanted pregnancy. Both the original and at-home versions are 99% effective at preventing pregnancy if you get it every 3 months ...

  7. www.webmd.com › multiple-sclerosis › what-is-multiple-sclerosisMultiple Sclerosis: Causes, Symptoms, & Diagnosis - WebMD

    2024年2月25日 · Multiple Sclerosis is when myelin, a sheath under the nerve cells, is attacked by the body's immune system. Learn about its causes, implications & treatment options.

  8. www.webmd.com › cancer › when-swollen-lymph-nodes-mean-cancerWhen Do Swollen Lymph Nodes Mean Cancer? - WebMD

    2022年8月22日 · Swelling usually signals an infection of some kind, but it could also be from a condition like rheumatoid arthritis or lupus, or rarely, cancer. Often, swollen lymph nodes will be close to where ...

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