Human Iris Close-Up: Anatomy and Color Variation in the Eye #3401910 (License: Personal Use)

This macro photograph captures the intricate microstructure of a human iris, highlighting radial collagen fibers, crypts, and flecks of melanin that create a mosaic of blues, golds, and browns. The pupil appears dark and sharply defined, surrounded by a textured limbal ring and subtle vascular networks at the periphery. Such detail is only visible under specialized ophthalmic imaging or extreme macro photography.

Used in medical education, ophthalmology websites, vision science articles, and biometric identity discussions; targets users seeking anatomical insight, eye health information, or forensic/identification context.