To prevent neck/shoulder pains..at what eye...

[jwespinosa]

...level should your chair/screen be ?

[Knickz]

my ophthalmologist before told me that tv's and monitors are preferred to be set a lower level than your eyes. She says around 15 to 30 degrees bellow it.

[rajiv h]

basically yourshoulder and elbow should be relaxed .FOr further detail guidance mail me and we will talk if needed.Youmay like to visit my blog-www.pain-gujarat.blogspot.comThis will give you some idea. it is still under development stage but still you will get good idea