劍橋詞典a fairly rare condition in which an old person loses control over the muscles in their eyes , face , and neck . It eventually leads to dementia (= loss of mental ability ). 進(jìn)行性核上性麻痺，進(jìn)行性上眼神經(jīng)核麻痺癥，Steele-Richardson-Olszewski綜郃癥 返回 Steele-Richardson-Olszewski syndrome