医生曾断言戴上眼镜就一辈子摘不下来了。一套由三个动作组成的眼球操正在推翻这个结论。动作异常简单。先做眼部拉伸和转圈。让眼部肌肉向两侧拉伸到极限。接着进行左右平移。视线在最左和最右两端来回扫视。第三项练习是整套动作的核心。让眼球沿对角线斜向移动。从左上直达右下，再从右上滑向左下。视力退化往往源于眼部肌肉的长期僵死。每天几分钟的针对性拉伸就能重新激活它们。视力的走向其实就藏在这些微小的运动轨迹里。

Its crazy what you can do with the Unity's culling system! Added some npc's optimization, they can now drastically lower their simulation if they are off screen or even completely stop it while also only playing particles and animation if they are in view, from 150 to 350fps! Code in comments!

Frustum Culling (More fps)