医疗广告都说激光治疗近视几乎零风险，其实返工率很高的。有些医院为了创收，检查未必那么严格。据说有的医院还在用国外已经淘汰的二手设备！
yīliáo guǎnggào dōu shuō jīguāng zhìliáo jìnshì jīhū líng fēngxiǎn ，qíshí fǎngōnglǜ hěn gāo de 。yǒuxiē yīyuàn wèile chuàngshōu ，jiǎnchá wèibì nàme yángé 。jùshuō yǒude yīyuàn hái zài yòng guówài yǐjīng táotài de èrshǒu shèbèi ！
Medical adverstisements always say that laser treatment for shortsightedness is almost no-risk, but actually the success rate is really low. In order to make money, some hospitals may not be so thorough with their examinations. People say there are hospitals that use second-hand equipment that's already out of use abroad.