Phosphene Phenomena

Explore the Stiles-Crawford effect, where light entering the pupil's center appears brighter, impacting visual acuity and cone photoreceptor efficiency.

Understand the Purkinje shift, how eye sensitivity changes in low light, affecting color perception from reds to blues.

Learn about Haidinger's Brushes, an entoptic phenomenon allowing you to see polarized light due to macular pigment.