A. astigmatism B. cataracts C. near-sightedness D. far-sightedness 相关知识点: 试题来源: 解析 B[考点]事实细节题 [精析]B根据第二段第二句Everything else seems blurry, so they need glasses.,第二段最后一句If they want to do much reading, they must get glasses, too.,第三段第三句This...
Glasses Can Correct Blurred Vision Caused by AstigmatismDEAR DOCTOR K: I wear corrective glasses for astigmatism, but I don't reallyunderstand what...Komaroff, Anthony
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. 【小题1】When the Chinese first used colored glasses, they thought...
Contact lenses are small disks of plastic that are carefully shaped to help correct the errors in where the light focuses on the retina. For patients without astigmatism, contact lenses are uniformly round with a smooth curve like a ping pong ball. But for patients with astigmatism, the contact...
Yes, in most cases, LASIK can fully correctastigmatism, and the effect is permanent. Astigmatism is a very common vision problem. Despite having a somewhat scary-sounding name, astigmatism is not an eye disease — it's simply a refractive error like nearsightedness and farsightedness — and ...
a得了散光,医生就给你纠正,就给你配眼镜 Astigmatism, doctor has given you to correct, matches the eyeglasses to you [translate] ariding a dike 乘坐堤堰 [translate] aI Don't Believe Love 我不相信爱 [translate] abecause we truly are global, you will travel with English-speaking people from...
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 ...
aOther 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...
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. ...