有一位54岁的老视者，常戴单光眼镜，远用光度右眼-5.00DS，左眼-7.00DS.经营业员介绍，配了一副远用光度按照原来镜度，近用附加度为＋2.00DS，折射率ne为1.6的超薄舒适型渐进多焦点眼镜片。试戴后，配镜者反映，花了2000多元钱(包括眼镜架)，近用看书，看报还不及原来眼镜清晰，这是什么原因？ There is a 54-year-old presbyopic, often wearing a single light glasses, far with a bright right eye -5.00DS, left eye -7.00DS. Business members introduced with a long-range luminosity in accordance with the original degree of mirror, with a degree of +2 .00DS, refractive index ne is 1.6 ultra-thin and comfortable progressive multifocal lens. After trying on, the glasses reflect, spent more than 2000 yuan money (including glasses frames), read with the recent, reading newspaper is not as clear as the original glasses, what is the reason?