Dilated pupils in cats can be a sign of iris atrophy or a more serious underlying condition. Here’s how to know when to seek ...

The dreaded red-eye effect is the bane of any casual photographer. All you wanted was a sweet memento of your friend’s ...

Leukocoria means "white pupil." It describes a condition where the pupil of the eye is white rather than black. ... The red reflex is what causes "red eye" in flash photography.

Removing red-eye from photos on an iPhone is quite straightforward. You don't need any third-party apps, as Apple provides a built-in red-eye correction feature. Here's how to use it. Launch the ...

If people's pupils are not dilated, then it is a lot tougher for that red reflection to come back at the camera. Lastly, most modern cameras have some sort of anti-red-eye mode. What this does is ...

New research suggests your pupils may reflect how clearly you remember something. Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday.

It's the pupil being open that causes the red eye. That's why some cameras do a double flash - one to close the pupil and one to actually take the photo.

What traumatizes me the most are her pupil-less red eyes. And its blood-red jaw, as if it had just eaten something." Twenty seconds Alain will never forget!

Red eye is a common ophthalmologic condition and accounts for 2% to 3% of office visits in the primary care setting. 1 Although most cases of red eye are benign, detailed history-taking (onset and ...

Discover the science behind red-eye, when it happens, and how to prevent it easily. ... More Light, Less Red: If it is brighter, your pupils will be smaller, bouncing less light.

WAILEA, Hawaii — In this Healio video perspective from Hawaiian Eye 2024, Andrew G. Lee, MD, overviews some of the major indicators that a patient with ptosis need to be hospitalized.

Photos of eye cancer can sometimes show signs of a tumor, such as a white reflection in the eyes or a change in pupil size. Learn more here. ... they switch red-eye reduction off; Similarly, ...