How do our eyes adjust to different types of light?
Our Iris’s are the circular structures in our eyes that control the diameter of our pupil, the hole in the center of the Iris and our pupil controls the amount of light that enters our eye.
When our eyes are exposed to light, our Iris expands causing the pupil to become smaller. This regulates the perfect amount of light we need to be able to see. When our eyes are exposed to low light, the Iris contracts, causing the pupil to become larger. This creates more space for light to enter our eye!
In this gif, is the Iris contracting or expanding and why?
In the “twilight zone” of the deep ocean, strange glowing sharks have evolved eyes that are adapted to see complex patterns of light in the dark, new research reveals.
These bioluminescent sharks have a higher density of light-sensitive cells in their retinas, and some species have even developed other visual adaptations that help them see the glimmering lights they use to signal to each other, find prey and camouflage themselves in this region where little light penetrates, according to a study published today (Aug. 6) in the journalPLOS ONE.
My friend’s eye.
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