Segmental or sectoral heterochromia'. Sectoral Heterochromia looks like an irregular spot that is a different color than the eye color and does not form a complete ring around the pupil. Most cases of heterochromia iridis are not associated with any symptoms or problems. the color of the iris is determined primarily by the concentration and distribution of melanin, for example, brown eyes have large amounts of melanin pigment deposits, and blue eyes have a lack of melanin. @medicalcortex #medstudents #medicalstudent #nurse #eye #beautiful #blueeyes #browneyes #doctor #nurse #nursing #surgery #ophthalmology #hospital #iris #f4f #l4l #premed #usmle #mcat #medstudent #surgeon #beautiful #beauty #coffeetime☕️ #coffe #coffee #emergency #anatomy #melanin #scrubs