双眼对一个人有哪些用途有多大？它带大家驰骋世界，助大家与帅哥美女明眸善睐，但直到它出现问题大家才意识到它的重要程度。事实上，双眼比你想象的愈加敏锐：不论是化妆品、空调，还是日常的其它物品，都会对双眼导致影响。下面就告诉你几招护眼知识，叫你拥有洞察万象的双眸。
Q1、My eyes are always itchy this time of year
每年的这时我的双眼就会发痒
Seasonal allergies can make your eyes itch like crazy, thanks to the histamine they produce in response to pollen and other irritants.
季节性过敏会让双眼痒得要命，好在人体内的组胺（和其他部位）能帮你抵挡花粉和其它过敏原的侵袭。
改变办法
Staying indoors with the windows shut is ideal, but we know you can't be a total recluse. So use over-the-counter allergy eyedrops such as Naphcon-A, or ask your doc to prescribe a more potent one such as Pataday, says Anne Sumers, MD, a clinical correspondent for the American Academy of Ophthalmology. And shower before bed so pollen's not lingering on your face and in your hair all night long.
应付这种过敏症最佳的方法就是待在门窗紧闭的室内，但你不可能一直这么宅着。因此，美国医学博士、眼科掌握临床发言人安妮·苏梅尔斯（Anne Sumers）推荐使用治疗过敏症的非处方滴眼液，如那素达滴眼液（Naphcon-A），或者找大夫开些特效药，譬如奥洛他定眼药水（Pataday）。另外，睡前洗澡也十分必要，这会预防花粉等过敏原整夜残留在你的脸部或头发上。
Q2、Why are my lids pink and puffy?
为何我的眼皮又红又肿？
If one or both of your eyelids are inflamed, itchy, and red, you may have blepharitis, which occurs when bacteria or excessive oil from your eyes coats the lid near the eyelash line. It can also be caused by allergies. "Blepharitis, which is not contagious and usually doesn't require antibiotics, often gets mistaken for pink eye, which is usually caused by a virus and is highly infectious," Dr. Sumers says. Check in with an eye doctor to figure out which one you've got. A pink eyelid can also mean you have a sty, a bacterial infection on your lid that takes the form of a painful, pus-filled pimple.
假如眼皮出现红肿发痒的症状，那你非常可能患上了睑缘炎。这种炎症一般是由眼部细菌或分泌的油脂感染睫毛线附近的眼皮而引起的，但也会是由过敏所致。苏梅尔斯博士说：“睑缘炎并不传染，也无需用抗生素进行治疗。它常常让人们误觉得是结膜炎，这是一种由病毒引起的高传染成人两性疾病。”所以当双眼出现类似症状时，去找位眼科大夫确诊一下吧。结膜炎（又称红眼病）和眼睑炎一样，都是由细菌感染引发，并伴有麦粒肿，带给你肿痛感，甚至还会化脓。
改变办法
Prevent and treat both styes and blepharitis by keeping the eye clean. Soak a washcloth with warm water, wring it out, and place it over your closed eye for a minute or two. Do this two or three times a day. "Clean all your eye makeup off every night," Dr. Sumers adds, "and never wear eyeliner inside your lash line." And no matter how tempted you are, don't pop a sty, or you could spread the infection.
通过维持眼部卫生来预防和治疗眼睑炎和结膜炎。将毛巾浸入温水中，取出拧干，热敷眼睛一到两分钟，并天天重复两到三次。苏梅尔斯博士补充说：“每晚睡前要将眼妆卸干净，而且绝对不要画内眼线。”另外，无论怎么样都不可以自己动手刺破脓肿，如此比较容易致使感染扩散。
Q3、My eyes are burning!
我的眼睛灼痛！
If you feel a gritty, scratchy, or even stabbing pain in your eyes, you may be one of the 10 million Americans suffering from dry eye syndrome. Blame modern life: Air-conditioning and central heating can leave eyes parched, says Stephanie Marioneaux, MD, an ophthalmologist in Chesapeake, Virginia. Plus, studies have shown that when we stare at a screen, we don't blink as often, so our eyes lose their natural lubrication. If you wear contact lenses, you're more prone; same goes if you smoke or take medications such as antihistamines or decongestants.
假如你的双眼有异物感、摩擦感，甚至是刺痛感，那你非常可能患上了干眼症，这种眼部疾病在美国的患病率为千分之一。美国弗吉尼亚州 切萨皮克市眼科博士斯蒂芬妮（Stephanie Marioneaux）表示，干眼症的病因归咎于现代化生活：空调和暖气的用法会让双眼变得干燥。除此之外，研究表明，当大家长期盯着屏幕时，眨眼的次数较平常变少，双眼也因此失去了原有些润滑。假如你佩带隐形眼镜、抽烟或服用具备抗组胺或缓解充血效果的药物时，患干眼症的几率更大。
改变办法
Try artificial tears. "Gels that are labeled 'for severe dry eye,' such as Systane, are thicker and last longer, but they can feel gummy and blur vision," Dr. Sumers says. "Drops that are labeled 'mild to moderate,' such as Refresh, are thinner and feel better, but won't last as long."
试一试人工泪液。苏梅尔斯博士表示：“那种标有‘合适紧急干眼症’的人工泪液，如视舒坦（Systane），它们的粘稠度较高，持续时间较长，但会让双眼感觉过于黏稠而视力模糊。最好使用那种‘浓度较低但非常温和’的人工泪液，如 Refresh。虽然它们的成效持续时间不长，但粘稠度较低，会让双眼舒服些。”
If drops don't do the trick, your doctor can prescribe a TOPical medication or fit you with punctal plugs . Use a vaporizer or humidifier to keep indoor air moist, too. Surprisingly, eating fish high in omega-3 fatty acids—such as salmon, sardines, and tuna—may reduce your risk of dry eye, and taking flaxseed oil and omega-3 supplements may relieve symptoms, studies suggest. And every 10 minutes or so, look away from your computer or tablet screen and bat your lids like Scarlett O'Hara.
假如人工泪液不奏效，可以请大夫为你进行局部药物治疗，或者进行泪道栓塞治疗（植入泪道塞，预防眼泪较快流干）。除此之外，你也可以用喷雾器或加湿器维持室内空气湿润。让人吃惊的是，研究表明，食用富含欧米伽 3（omega-3）脂肪酸的鱼类——如鲑鱼、沙丁鱼和金枪鱼等——能预防干眼症，食用亚麻籽油和补充欧米伽 3脂肪酸还能减轻干眼症症状。除此之外，每隔十分钟左右，把双眼从电脑屏幕上移开，用手指轻拍眼皮也有成效。
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