reading glasses是特指老花镜吗? reading glasses近视眼镜，阅读用眼镜（特指花镜、远视眼睛） reading glasses 阅读用放大镜 （在这里不适用） 根据wikipedia 对护目眼镜的解释，这里的reading glasses=corrective glasses 矫视眼镜，矫正（视力）眼镜，因为新型的护目镜设计的可以直接套在普通眼镜上，戴眼镜的大都用过墨镜套镜，类似吧： safety glasses are usually made with shatter-resistant plastic lenses to protect the eye from flying debris. although safety lenses may be constructed from a variety of materials of various impact resistance, certain standards suggest that they maintain a minimum 1 millimeter thickness at the thinnest point, regardless of material. safety glasses can vary in the level of protection they provide. for example, those used in medicine may be expected to protect against blood splatter while safety glasses in a factory might have stronger lenses and a stronger frame with additional shields at the temples. the lenses of safety glasses can also be shaped for correction. some safety glasses are designed to fit over corrective glasses or sunglasses . they may provide less eye protection than goggles or other forms of eye protection, but their light weight increases the likelihood that they will actually be used. modern safety glasses tend to be given a more stylish design in order to encourage their use. corrective glasses with plastic lenses can be used in the place of safety glasses in many environments; this is one advantage that they have over contact lenses. there are also safety glasses for welding, which are styled like wraparound sunglasses, but with much darker lenses, for use in welding where a full sized welding helmet is inconvenient or uncomfortable. these are often called "flash goggles", because they provide protection from welding flash.查看更多
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