Прочитайте текст и ответьте на вопрос: What is the age-related presbyopia treated with Glasses are p...: ответ на тест 1046266 - Английский язык
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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.
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.
Вопрос задал(а): Анонимный пользователь, 13 Ноябрь 2020 в 17:57
На вопрос ответил(а): Анастасия Степанова, 13 Ноябрь 2020 в 17:57
На вопрос ответил(а): Анастасия Степанова, 13 Ноябрь 2020 в 17:57