A. a special function of glasses 眼镜的特殊功能;B. a special lens一种特殊的镜头;C. a kind of glasses一种眼镜;D. an eye problem一种眼睛问题。由astigmatism后的解释an eye problem可知它是一种眼病。故选D。 考点:考查历史文化类短文阅读。 结果一 题目 “I can’
Glasses Can Correct Blurred Vision Caused by AstigmatismDEAR DOCTOR K: I wear corrective glasses for astigmatism, but I don't reallyunderstand what...Komaroff, Anthony
If you’re not sure what style of glasses to choose, you can always try frames on at home! Specialty Contact Lenses Contacts designed to correct more severe cases of astigmatism may look a bit different from the contacts you’re used to. Scleral contact lenses are larger lenses with edges...
Many years later, in 1825, George Airy made circle-shaped glasses to correct astigmatism, an eye problem that stops the eyes from seeing things clearly.1. When the Chinese first used colored glasses, they thought A. glasses could help eyes to see clearly B. glasses were in style C. eyes...
If you have astigmatism, you’d already know how hard it is to find good quality contact lenses that offerclear visionand feel comfortable to wear. A lot of people who are dealing with vision issues likeastigmatismoften prefer to wear contacts over glasses become they are convenient and look ...
65.People who suffer from astigmatism haveB.A.one eye bigger than the otherB.eyes that are not exactly the right shapeC.a difficulty that can be corrected by an operationD.an eye difficult that cannot be corrected by glasses. 试题答案 分析 眼睛是心灵的窗户,我们应该保护好我们的眼睛. ...
Before understanding how eyeglasses benefit wearers beyond eyesight, it is essential to understand how significant vision correction can be for individual users. Whether you suffer from nearsightedness, farsightedness, astigmatism, or presbyopia, eyeglasses help you see clearly and without strain by ...
Other people do not see clearly because their eyes are not exactly the right shape.They have what is called astigmatism(散光).This, too, can be corrected by glasses.Some people’s eyes become cloudy because of cataracts(白内障).Long ago these people often became blind.Now, however, it is ...
In 1784, Ben Franklin created glasses that had bifocal(双焦的) lenses. Many years later, in 1827, George Airy made circle-shaped glasses to correct astigmatism, an eye problem that stops the eyes from seeing things clearly. 1.When the Chinese first used colored glasses, they thought ___....
Catalyst femtosecond laser systems which are the newest surgical methods for assisted cataract surgery. The Lensar laser system was the first femtosecond laser to gain approval for cataract surgery. The laser is directed to make the entry incisions and correct astigmatism at the time of cataract ...