This is too cool.
About 7–10% of men have some form of what is commonly referred to as red-green color blindness and officially called deuteranomaly (deuteranopia in much smaller portion). Feels like I’ve met them all.
Consider the problems these poor chaps have navigating images and presentation slides of heavily red-green-dependent immunofluorescence, microarray, “heat-map”, and structural data.
To get a feel for how deuteranopes perceive the scientific world, check out Vischeck. To see how you can correct your red-green-intensive images so they are accessible to deuteranopes, check out the Daltonize tool (named after John Dalton, the red-green colorblind father of atomic theory). Indeed, the Nature Structural & Molecular Biology style guide now asks that contrasts of red and green be avoided in graphs, models and schematics and encourages use of these online resources for just this purpose.
Update: Our friends down under have kindly alerted me to the availability of additional resources at their Colour Blind Awareness and Support Group, including help for a wider range of disorders.