Why Do My Eyes Glow Red in Photos?

The video explains the red eye effect in photos, caused by a camera flash reflecting off blood vessels in the eye. It describes the eye's anatomy, including the cornea, pupil, and iris, and how they adapt to light. The red eye effect occurs when pupils are wide in low light, and a sudden flash reflects off the eye's blood vessels. To prevent it, cameras may use pre-flashes, or you can adjust lighting or avoid looking directly at the lens. The effect can also indicate eye health issues, such as infections or misaligned eyes.

What part of the eye is responsible for controlling the size of the pupil?

• Cornea

• Lens

• Iris

• Retina

Why does the red eye effect typically occur in dark environments?

• The cornea reflects more light.

• The pupil is wider, allowing more light in.

• The iris is less active.

• The lens focuses light more intensely.

What is one method to reduce the red eye effect when taking photos?

• Use a brighter flash.

• Take photos in a darker room.

• Use a camera with pre-flashes.

• Focus the camera lens manually.

What might a glowing white or yellowish eye in a photo indicate?

• A camera malfunction

• A reflection from the lens

• An eye infection or other issue

• A healthy eye

What could cause only one eye to appear red in a photo?

• A faulty camera flash

• The person moving

• The person blinking

• Different amounts of melanin in each eye