②extremely nearsighted/shortsighted 眼睛不好,那当然需要眼镜来看清这个世界啦,眼镜大家都知道是glasses,其实眼镜还有另一种说法:Spectacles,只不过是Spectacles这个单词比较正式,一般人很少用。 最后再跟大家补充一下其他跟视力相关的...
②extremely nearsighted/shortsighted 眼睛不好,那当然需要眼镜来看清这个世界啦,眼镜大家都知道是glasses,其实眼镜还有另一种说法:Spectacles,只不过是Spectacles这个单词比较正式,一般人很少用。 最后再跟大家补充一下其他跟视力相关的表达。 远视:long sight、farsighted(ness)、hyperopia 隐形眼镜:Contact lenses 眼科...
②extremely nearsighted/shortsighted 眼睛不好,那当然需要眼镜来看清这个世界啦,眼镜大家都知道是glasses,其实眼镜还有另一种说法:Spectacles,只不过是Spectacles这个单词比较正式,一般人很少用。 最后再跟大家补充一下其他跟视力相关的表达。 远视:long sight、farsighted(ness)、hyperopia 隐形眼镜:Contact lenses 眼科...
In the past 20 years, in response to the demand for thinner, lighter spectacles, a number of lens manufacturers have introducedhigh-index plastic lenses. These lenses are thinner and lighter than CR-39 plastic lenses because they have a higher index of refraction (see below) and may also hav...
”;“One big change was bifocals (双焦镜) in 1784.”;“Sunglasses”;“contact lenses (隐形眼镜), ”以及“fashion glasses”可知文章提到了五种眼镜。故选D。 (4)题详解: 最佳标题题。通读全文,尤其根据“Today, about 50% of people in the world wear glasses. But how much do you know about...
Are you really paying that much for a name or are there fundamental differences between the look-alike sunglasses and the brand-name ones? The biggest problem with cheap sunglasses is in the way the lenses are made. Inexpensive sunglasses have lenses made of ordinary plastic with a thin tinted...
Ultimately, the choice of lenses depends on your specific vision needs, budget, and preference for quality. How Much Do Eyeglass Frames Cost? The cost of glasses and frames can vary widely, and whether you have vision insurance like VSP (Vision Service Plan) or not, plays a significant role...
A lot of sunglasses advertised as polarizing actually are not. There's a simple test you can perform before you buy them to make sure. Find a reflective surface, and hold the glasses so that you are viewing the surface through one of the lenses. Now slowly rotate the glasses to a 90-...
Sunglasses are a necessity whether you’re camping, climbing or cycling. Learn about fit, frame, lenses and more at REI Expert Advice.
How to store your glasses? Best ways to clean glasses frames Remember, cleaning your frames is just as important as cleaning the lenses. Glasses frames have small parts like screws and hinges that can get dirty and touch your skin, so it's also important for personal hygiene too. Here are...