Experts caution that no matter which method patients choose, they may need to wear eye glasses again one day—at least for reading.
【正确答案】 C
【答案解析】解析：句意：专家警告不论患者选用了哪种方法，至少为了阅读，有一天他们可能还是会需要再次戴上眼镜。caution警告。warn警告，通知。claim要求，主张。