What Does Pearids What Does The Navy Use As Their Secondary Color Blind Test?

What does the navy use as their secondary color blind test? - what does pearids

The recruiter told me to use on a secondary test, but who knows? I'm not talking about points plates. Is it something like Farnsworlth free flashlight. I know that the Air Force has a second test, but the Navy has to know someone, whether it would be very useful.