Color, emotion, and precision come together in this realistic blue eyes drawing, where the gaze becomes the heart of the artwork. The drawing focuses on layered tones within the iris, using subtle ...

It is believed that there are four main factors, which determine iris colour: the pigment granules within the posterior pigment epithelium, the concentration of pigment within the iris stromal ...

Please provide your email address to receive an email when new articles are posted on . The iris, which imparts the unique color of the human eye, is named after the Greek goddess Iris, meaning ...