Pupil size alteration based on emotional state is a well-documented phenomenon. While pupil dilation or constriction is a physiological response, the perception of eye color change can be influenced by factors such as surrounding lighting conditions, clothing, and even makeup. For instance, blue eyes might appear slightly greener in a room with warm lighting, leading to anecdotal observations connecting apparent color shifts with emotional experiences.
Understanding the interplay between physiological responses, perception, and environmental factors offers valuable insights into how emotions are expressed and interpreted. Historically, eye color has been attributed to various personality traits and emotional dispositions across different cultures. Exploring these cultural perceptions alongside the scientific basis of pupil responses provides a more complete understanding of the subject.