Facts about Human eyes

 ‌Interesting facts about eyes that you probably didn’t know

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1.Size (length)= 1 inch across  

2.weight = about 28 grams

3.The human eye can  approximately 10 million different colors .. 

4.blinks Average = 4,200,000 times a year.
This means if you were given a nickel for every time you blinked you would make $210,000 annually.

4.Eyes are made up of over 2 million working parts.

5.Each individual eye contains 107 million cells and all are light sensitive

6.The night vision of tigers is six times better than that of humans.

7.Our eyes remain the same size throughout life, whereas our nose and ears never stop growing.

8.The muscles in the eye are 100 times stronger than they need to be to perform their function.

9.Eyes are the second most complex organ after the brain. Only one sixth of the human eyeball is exposed.

10.The human eye can detect the visible spectrum of the electromagnetic spectrum — a range of wavelengths between 390 to 700 nanometers.