Margaret,
Other colors that are easy to see when cutting and embedding are tattoo inks
they adhere to tissue very well and are much more inexpensive that the dyes that
are supplier by people like davidson and or TBS

Rod Slyter

"Wilhelms, Margaret B" wrote:

> I would like to know if anyone uses a dye or ink to mark certain structures
> at trimming that will stay in place and be visible after processing (at
> cutting).  I am trimming primate eyes and would like to mark the macula (and
> fovea) or the outside of the eye where the macula is so that it would be
> easier to obtain at cutting.  I think I need a color other than black.  Can
> anyone suggest anything?  Does anyone know of a dye or ink that can be
> applied after processing just prior to embedding?  Thanks in advance for
> your help.
>
> Meg