Прочитайте текст и заполните пропуски подходящими по смыслу словами. Eye disease is one of the most ...: ответ на тест 1046264 - Английский язык

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Eye disease is one of the most common forms of ill health, particularly in the elderly and many severe eye 1_______ are only partially treatable. Problems with the 2_______ pathway (eye, brain, eyelids, and lacrimal system which protects the eye) keep a steady flow of patients through the surgeries of both ophthalmologists who 3_______ surgery and optometrists / opticians who prescribe optical aids like 4_______.

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Headache is a symptom of many 1_______. It may occur with common cold, fever, eye strain or hunger. It may 2_______ mumps, malaria, measles and many other infections. But if severe 3_______ persists you should consult a doctor. Frequent and 4_______ headache may sometimes be a symptom of brain tumour.

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To protect the public, all 1_______ must be tested and officially authorized to make sure that they are safe and produced to a quality 2_______. There are different types of medicines. Some are only available on 3_______, others are only available from pharmacies, and there are a small number that can be bought from other retail outlets. To be sure that you get the best product and advice for your needs, ask your 4_______, the expert on medicines.

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What is the age-related presbyopia treated with?
Glasses are prescribed when light rays do not focus correctly on the retina. If they focus in front of the retina, the result is short-sightedness, also called myopia. This is treated by a concave lens. If light rays focus behind the retina, the result is long-sightedness, also called presbyopia. This is treated with a convex lens. There is laser surgery available now for these problems, though it is not able to treat age-related presbyopia which most people develop in their mid 40s because by that time the lens has lost too much flexibility.

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How is the most important symptom that leads to a diagnosis called?
Symptoms are physical conditions that indicate the illness, and are usually described as either strong mild, or weak. Many illnesses have symptoms in common, such as nausea, high blood pressure, etc., whereas other symptoms are rarer and specific to a narrow range of illnesses. The most important symptom that leads to a diagnosis is called a cardinal symptom, and the symptoms that cause a patient to seek medical help are referred to as presenting symptoms.

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How much had the woman gained in weight?
A 50-year-old housewife, who had been well until four months previously, complained of tiredness and malaise. She had gained 9 kg in weight in the year before she presented to her GP although she denied eating more than usual. She was constipated and she noticed that her hair had started to fall out.