| 词汇 | presbyopia |
| 释义 | presbyopia noun[ U ] medical specializeduk /ˌprez.biˈəʊ.pi.ə/ us /ˌprez.biˈoʊ.pi.ə/ a condition in which someone finds it difficult to focus the eyes on things that are near, especially when there is not much light, which usually gets worse with age: 老花眼，老年远视 Presbyopia develops as the eyes' lenses lose their ability to focus on near objects. Then presbyopia set in, and she found it difficult to see up close. See also hyperopia This technique can restore patient’s ability to deal with near vision tasks which has been lost due to presbyopia . Despite extensive research on the subject, little has changed in the basic understanding of presbyopia in 150 years. A third factor contributing to presbyopia lies in the internal structure of the lens itself. Eyesight, glasses & lenses accommodative afterimage age-related macular degeneration amaurosis amblyopia dispensing optician eyeglasses glaucoma lenticular limbus long-sighted long-sightedness macula macula lutea ocular oculist ophthalmology wet macular degeneration wraparounds yellow spot Examples of presbyopiapresbyopia One person's reading glasses for presbyopia can be the same as another's distance glasses. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 How can someone know whether they have presbyopia or something else? From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 We are advised that presbyopia is a medical condition of the eye caused by a natural ageing process. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 For example, let us suppose that someone has an early glaucoma or an early diabetic retinopathy, but also some presbyopia. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The condition known as presbyopia is perfectly normal. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Many of the conditions which are detected by the screening by opticians occur at the ages when presbyopia appears. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Furthermore, presbyopia is part of the total body undergoing its natural changes through age throughout our life. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Theoretically, it is impossible for there to be presbyopia of more than three dioptrics, but ready-mades are said to be for persons suffering from presbyopia. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 In other words, in presbyopia age is one's prescription; and, vice versa, the prescription gives a good idea of age. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 I believe that they are only for presbyopia, which is a natural condition which affects all of us at a certain age. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Throughout, one is subjected to a compulsory sight test merely in order to cater for the perfectly normal progression of one's age, which is presbyopia. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 I should just like to say one word about presbyopia because it sounds such a sinister word, and people seem to get the idea it is some form of disease. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Thus, it attacks the very group who in the normal way would be most likely to seek out aid for reading glasses as a result of presbyopia. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Like gray hair and wrinkles, presbyopia is a symptom caused by the natural course of aging. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Additionally, the surgery is reversible in many cases, helping those who develop long-sightedness or presbyopia as they age. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. See all examples of presbyopia These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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