Single vision lenses 单光镜片 ; 单光镜片儿
Single Vision Lenses SVLs 单光眼镜
Single Vision Corrective Lenses 眼科光学 ; 视力矫正用单焦点眼镜片
Single-vision spectacle lenses 单光框架眼镜
Single-vision hydrogel contact lenses 单焦水凝胶接触镜片
Night Vision Contact Lenses 夜视隐形眼镜
Standard replacement lenses have no ability to focus, so the wearer is often stuck with excellent distance vision but must use glasses for reading.
标准的替换晶体没有聚焦的能力，因此使用者经常拥有绝佳的远距离视力但必须使用眼镜才能阅读。
Distance glasses (minus lenses) are routinely prescribed. These function by bringing everything closer, up within the range of clear vision.
常规配置远距眼镜（负透镜），作用是拉近各种物体到看得清晰的范围。
Blurred vision-often passes soon and usually will not require a new corrective lenses prescription.
视力模糊—通常很快过去并且通常不需要新的矫治镜片。
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