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...
Astigmatismis caused by an irregularly shaped cornea or lens in the eye. When light passes through a cornea that is not uniformly round, the light does not all focus at the same point inside the eye and vision is blurry. The amount of astigmatism can vary from barely noticeable to very se...
最典型的就是追光灯,还有成像灯等特种灯具的设计和灯光搭建,目前最常见的是染色灯、电脑灯,可以把酒店的空间染色,或是打出定制的logo或文字。 Astigmatism illumination design and light build, like three primary color soft light lamp, four audience lamps, foot light and so on.Most typical is the ...
Seeastigmatism, oblique. tapetoretinal degeneration Seedegeneration, tapetoretinal. tapetoretinal dystrophy, progressive Seechoroideremia. tapetum lucidum A reflecting pigment layer lying behind the visual receptors of the retina of certain mammals (e.g. cats, dogs), birds and fish, which gives a sh...
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A number of eye conditions cause symptoms that mirror the signs of ADHD or ADD (attention deficit disorder). They include: Uncorrected refractive error Uncorrectedmyopia,hyperopiaandastigmatismcan all causeblurry visionin children. Myopia is the most common refractive error in school-aged children, wi...
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 possible to operate on the cataracts and remove them. Having two good eyes...
laid by Leonardo da Vinci in the 15thcentury,'How a Customised Autoclave Helped a Contact Lens Manufacturer to Solve a Packaging Problem'explores how one of the UK's leading autoclave manufacturers is working hard to meet industry standards and in turn, address conditions like astigmatism....
Astigmatism for a human eye can be removed by using View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Class 11 and Class 12, IIT JEE prep, NEET preparation and CBSE, UP Board, Bihar Board...