Why do they have red eyes in pictures?

Although technology has simplified the art of taking photographs, the effect of red eyes still remains among the major features of photography. But what causes this interesting effect?

In lighty surroundings, pupils grow to allow light to penetrate the eye. When light comes into the eye, babies don't have much time to tighten up. Hence, the amount of light visible to the eye reflects the red blood vessels of coronoid ʹ the layers of tissue attached to the back of the eye. When the light or the camera lights the blood - filled retina, it results in the effect of red eyes. The reason you have red eyes may be that you look directly at camera lens. You can eliminate this effect only by looking at an electric pole moments before you take your picture.

In lighty surroundings, pupils grow to allow light to penetrate the eye. When light comes into the eye, babies don't have much time to tighten up. Hence, the amount of light visible to the eye reflects the red blood vessels of coronoid ʹ the layers of tissue attached to the back of the eye. When the light or the camera lights the blood - filled retina, it results in the effect of red eyes.

The reason you have red eyes may be that you look directly at camera lens. You can eliminate this effect only by looking at an electric pole moments before you take your picture.

To reduce the effect of the red eye, most modern cameras forward send light to the final flash, which gives the babies sufficient time to tighten and adapt.