The Science of Vision, Eye Health & Seeing Better | Episode 24
Main Takeaways
Vision is the ability to perceive objects, shapes, sizes, and colors, which involves eyesight and affects mood and level of alertness.
The eyes collect light information and send it to the brain through photoreceptors, which are responsible for vision.
The brain uses a significant amount of real estate for vision, and retinal ganglion cells send electrical information to the brain for processing.
Every animal sees the world differently depending on the number of cones they have, which affects the wavelengths of light they see.
Subconscious aspects of vision, such as mood, sleep, and appetite, are linked to melanopsin ganglion cells found in retinal ganglion cells.
Sunlight exposure is crucial for regulating circadian rhythms, improving alertness, reducing myopia, and promoting eye health.
Accommodation refers to how our eyes adjust for depth, and healthy pupils dilate when looking at far objects and shrink when looking at close objects.
The position of the eyes is linked to the system of alertness and can create a wakefulness signal, which can be improved by looking up toward the ceiling or positioning the computer screen at or above eye level.
Colorblindness is often red/green colorblindness, and improving vision can be achieved by spending at least 10 minutes each day viewing things off in the distance.
Certain foods, such as dark leafy vegetables, carrots, lutein, and seafoods, can support vision by providing vitamin A and increasing ocular blood flow.
