This cache is locked, in order to open it I will need to check your vision:
The first test is checking your PERIPHERAL VISION. Search this page for a hidden number.
(use the Certitude checker at the bottom to check your answer)
After you have passed your peripheral vision test, it is time to head to the cache site and find out if you are COLOR BLIND or not.
Finally, even someone that has no peripheral vision and is color blind could "see" this number written in "GOLD".
If you have passed all of the tests you will have 3 numbers. In order to open the lock on the cache you will need to:
Turn right 3 times, stop at PERIPHERAL VISION.
Turn left 1 full turn passing the 1st number and stop at COLOR BLIND.
Turn right and stop at "GOLD"
Enjoy!
You can validate your puzzle solution with certitude.