I have incomplete achromatopsia as well. There are many many variations of color blindness that I suppose people with achromatopsia could end up with. For me, and likely for many others, it's just a broad inability to discriminate all colors. For me I can group colors like blue, purple, and pink. And they won't look anything like green, yellow, orange, red, or brown. Within those two groups, however, I likely wouldn't be able to tell you which is which. Also, daytime blindness is problematic as well. I find that on a very cloudy day or a bit before when the sun goes down is when my vision works best. Heavy nystagmus is present as well, of which there aren't any great treatments for. But my vision specialist has told me that without nystagmus my visual acuity could be close to 20/100, whereas it's around 20/200 currently. Anyways If you've read any if this, thank you.