Infinity! They say the eyes are the window to the soul... look deep!

Every eye is as unique as a human fingerprint. There you go some amazing facts about it:
The eyes blink on an average of 17 times per minute, 14,280 times per day, and 5.2 million times a year.
Your retinas receive your vision of the outside world as upside–down.
Your eyes can get sunburned.
Our iris, or the color part of our eyes, has over 256 unique characteristics.Our fingerprints have only about 40 unique characteristics.
Eye color is therefore something like the sky, it depends on the lighting conditions, especially for lighter-colored eyes.