When was the eye discovered?

The eye, as an anatomical structure, has existed for millions of years, evolving in various forms across different species. However, the scientific study of the eye began in ancient civilizations, with early observations dating back to Egyptian and Greek scholars around 400 BCE. The understanding of the eye's anatomy and function significantly advanced during the Renaissance, particularly with figures like Leonardo da vinci and later, in the 17th century, with the invention of the microscope. Thus, while the eye itself was not "discovered" in a specific moment, its study has evolved over centuries.