10 Interesting Fact About The Biology of the Human Eye

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• Human eyes have more than 2 million small parts that can help see.
• The color of the iris of the human eye can change depending on light and mood.
• Human eyes can distinguish between more than 10 million different colors.
• Human eyes can move about 100,000 times a day.
• Cells in the retina of the human eye can regenerate throughout life, even with a very slow speed.
• Human eyes can see up to 90 percent of all information received by the human brain.
• Human eyes can capture very weak light, even only one photon.
• The human eye can focus the image at a very distant distance or close to only a small change in the lens.
• Human eyes can see objects moving at speeds of up to 1,000 kilometers per hour.
• Human eyes have a protective layer called sclera, which is made from connective tissue and protects the inside of the eye from injury.