There is a unique protein in our eyes, a derivative of vitamin A, which responds in only a single picosecond to change its form, triggering a series of events that let us “see”.

Blue eye

The first step in our ability to see is the microscopic change of a protein called rhodopsin found in the retina. This protein is responsible for converting light into signals that our brain can interpret to form images. The process occurs within an incredibly small time frame, taking only a picosecond or one-trillionth of a…

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