The Remarkable Evolution of the Human Eye

The human eye is a marvel of natural engineering, capable of incredible feats, from detecting faint light to focusing in an instant. Its complexity once baffled even Charles Darwin, who found it hard to believe such an intricate structure could have evolved. Yet, the journey of the eye spans over 500 million years, a testament to the power of natural selection.

From Light Spots to Complex Vision

• The Beginning: The story starts with simple light spots found in single-celled organisms like euglena. These light-sensitive proteins, linked to a flagellum, activate when light (and thus food) is detected.
• Directional Sensing: Flatworms, like planaria, possess a more advanced