Best way that I have found, and this has been discussed in the past, it to use Poser hair room lashes and brows because they always follow the underlying geometry. => In the hair room you can "grow hair" directly on the original geometry.

We had many examples in the now "gone" RDNA forum. Some of those test results are on my old PC if I am not mistaking.

The only thing that kept us from continuing was a well known Poser bug. => Yep, it is 31615 again.

When you save a figure with hair grown directly on its geometry, Poser splits all vertex groups into individuals creating double vertex at all welds when saving.