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| 来源： | Freesound 前往原页面 查看译文 |
| 作者： | digifishmusic |
| 许可： | CC-BY 保留署名许可协议 |
| 描述： | Myopia is short sightedness (distance objects look blurry) and a common form starts at around 6 years of age and continues to increase in severity until about 1618. The rate of progression determines how shortsighted the child will become. This presentation details the findings of a study where the rate of myopic progression in a group of school children wearing bifocal lenses (including basein prism) was about half that in a group of children wearing standard (single vision) lenses. Recording chain: Edirol R09HR internal mics high gain. |
| 标签： | conference experiment lecture myopia presentation research science scientificresearch |
| 音频格式 | mp3 |
| 声音时长 | 10:03 |
| 文件大小 | 11.5 MB |
| 比特率 | 1378 kbps |
| 声道 | 立体声 |