How We See Part 2: Brain

The video explains how the human eye and brain work together to create clear vision. It highlights the role of cone cells in sharp color vision, the constant movement of eyes to focus on different parts of a scene, and how the brain combines and corrects images from both eyes to produce a single, coherent view of the world. The brain flips the upside-down images projected onto the retina and merges the two separate images from each eye into one seamless picture.

What is the role of the fovea in vision?

• It detects motion.

• It is responsible for sharp color vision.

• It filters out harmful light.

• It helps in night vision.

How does the brain create the illusion of a focused view?

• By ignoring blurry images.

• By focusing on one eye at a time.

• By moving the eyes less frequently.

• By combining images from both eyes.

What happens to the image projected onto the retina?

• It is projected in slow motion.

• It is projected upside down.

• It is projected right side up.

• It is projected in black and white.

How does the brain handle images from two eyes?

• It uses only the dominant eye.

• It ignores one eye.

• It combines them into one image.

• It alternates between the two images.

What is the main function of the brain in vision?

• To enhance colors.

• To create a smooth visual experience.

• To increase brightness.

• To slow down motion.