Question

The appearance of ___ ____ in pictures occurs when a camera captures light reflecting from the retina at the back of a subject's eyes when a flash is used at night and/or in dim lighting. Fill in the blank.​

Answer 1

Answer:

Red eye

Explanation:

Although it could signal a serious eye condition such as cataract or retinal detachment, the most common reason for the “red-eye effect” is much more benign. The appearance of red eyes in photos occurs when the camera flash (or some other bright light source) is reflected from the retina.

Here’s how it works: Light hits the eye and causes the pupil to widen, allowing light to be detected by cells at the back of the eye (the retina) which then convert the light rays into electronic pulses that create visual images in our brain.

Answer 2

Answer:

Red eyes appear.

Explanation:

Because light illuminates blood (which is red in color) rich connective tissues joining the retina of eye.