use of isblank returns result when value seems to be blank, but cell contains a function - way around this?

[lagrangePoint3]

If a cell contains a function but displays the result of that function as a blank, literally "", my isblank function reports as if it is not blank. It seems to be looking at the function not the value.
Is there a way for me to specify to isblank that I want it to look at values alone?

Thanks.

 

[Micron]

Try replacing Isblank with testing for an empty string, or Len=0 (or <>0 as appropriate). A cell with a formula is never blank.

 

[Fluff]

Rather than using isblank you get test the cell like

=A2=""