Our smartphones can detect how many steps we have taken in a day, where we are walking to, and what the weather will be like this weekend. And now, a childhood cancer charity has warned that the ca
This is the red reflex, when light is shone into the eye, it is reflected off the retina and hence appear red. If you do not get a red reflection, then something is preventing the light from reaching the retina or the retina is unable to reflect the light. Please ensure you do not have the red effect turned off in your camera settings.