Hi Sacky,
I've just found a nice site that is worth a look.
Ishihara Plates Color Blindness Test in a Leaflet
There's a nice flash test about halfway down. I have a bit of difficulty on the plates but if I look up at them, i.e. tilt the screen back, I can see the numbers more easily.
I've heard that people that pass the lanterns are ony people that fail one or two Ishiara plates. However I know a ATC'er that can't do the Ishiara plates but passed the lanterns so i'm not sure what to think at the minute.
I believe those with red deficiency suffer worse than those with green deficiency. I'm not sure how you would go about it though as Australia is pretty isolated down there. Perhaps the only alternative would be for you to go to the States and get an FAA class 1 after passing a SODA ("Something" Of Demonstrated Ability) where you can demonstrate you can see different lamp signals at an airport. Once you have that you might be able to convert it to an Aussie Aviation Authority Class 1.
Good luck.
