I recently moved to another state and failed the driver's license eye exam for the first time in my life. For years I've been annoyed with poor reflectivity on

I recently moved to another state and failed the driver's license eye exam for the first time in my life. For years I've been annoyed with poor reflectivity on street signs and lane markers, now I know that it really was that my night vision had declined. Two interesting things from this: my optometrist has never commented on my night vision being impaired beyond asking if I'm bothered by approaching headlights causing glare and the last time my vision was checked by a state government was sometime in the mid 1990s. I don't have reason to drive at night all that often and usually wear my glasses at night anyway but I wonder how long my vision has been impaired enough that I should have been legally required to wear glasses, at least at night. Wonder how many other people have similar night vision that has slowly declined over time without them noticing nor their state knowing about it.