… the duochrome test?
OK, it’s a stretch but last week’s post about red and green exit signs got me wondering. I appreciate the comments and insights from those that chose to respond to the post.
It got me wondering if the red/black combination had more impact than the green/black combination. That led me back to years ago getting my eyes tested. I’ve worn contact lenses or glasses for as long as I can remember so I can’t recall the last time I woke up ready to go, except maybe for bumping into something I couldn’t see!
But, I do remember for years going to my eye doctor and this test was done every time. What looks “sharper” – the green side or the red side?
Now, I always thought that it was silly because black on green always appears sharper than black on red to me.
I did some research here. Holy physics, Batman.
Before you get overly impressed with me knowing the term “duochrome”, I’ll confess. It was easy to find as a result of the internet search “optometrist test red green”. Now, I can sound semi-informed when I visit my optometrist for my yearly check up. Quite frankly, I can’t remember the last time that the duochrome actually came up as part of my checkup.
For a Sunday, check in please..
- Before reading this post, did you know of the word duochrome?
- Do you have a predisposition to black on green or black on red?
- Do you get your eyes checked annually? If not, why not?
- When was the last time you had a duochrome test?
- How many pairs of glasses do you own?
- Do you think that red/black or green/black makes for a better exit sign?
I’d be most interested in your thoughts and insights on this topic. Please share them in the comments below.
This is part of a regular fun series of posts that appear on Sunday morning. They can all be enjoyed here.
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