We thank Bartsch et al for their comments on our article about a true
color scanning laser ophthalmoscope. We accept that the term "true color"
could be confusing, although the paper is clear as to what we mean; we use
the term to differentiate it from "false color," in which information that
has been collected monochromatically is then displayed using a color scale.
In the past, the laser tomographic scanner1
(Heidelberg Instruments, Heidelberg, Germany) used false-color coding for
better structure differentiation than that provided by 256 gray levels.
Manivannan A, Sharp PF. A False Use of "True Color". Arch Ophthalmol. 2002;120(5):676. doi: