It was previously believed that our pupil size was only affected by three things: light, focusing on nearby objects and cognitive effects.
Articles on Vision
Displaying 21 - 40 of 138 articles
If evolution had taken a different turn, nature would be missing some colours.
Black doesn’t appear in the visible spectrum of electromagnetic radiation. So why do we still see it?
The Vatican has said that the pilgrimage to Medjugorje, a small town in Bosnia-Herzegovina, can yield ‘spiritual benefits’ but refrained from calling the apparitions genuinely supernatural.
Light helps explains the evolution of our skin colour, why some of us have curly hair, and the size of our eyes. And light still shapes us today.
An anatomist explains why it’s so hard to perform whole-eye transplants.
The eye is sometimes overlooked as a window on an individual’s overall health. A simple routine examination can help detect a number of diseases.
Engineers have tried for decades to develop bionic eyes to reverse blindness. But the brain is far more complex than a computer.
Political scientists describe the age we are living in as “post-political”. This controversial concept refers to a noted lack of political alternatives on a global scale.
Phone cameras are an example of what’s called computational photography. Digital tools built into these cameras can enhance your images in real time.
While reading, scrolling and focusing on other objects near our faces increase the risk of developing myopia, a little time outdoors in the sun can help mitigate it.
Ever felt like your new glasses are making your ‘natural’ eyesight worse? It could be in the eye of the beholder.
Typically, cataract surgeries are painless and significantly restore vision.
Now’s the time to get your hands on a pair of eclipse glasses in preparation for April’s display of celestial wonder.
Not much is known about the predator fly Laphria saffrana. New research identified how they count the wingbeats of their favored prey, letting it slip out of focus before adjusting their heads.
Humans can’t see ultraviolet light – but lots of other animals can.
There are more reliable tests of visual acuity.
Detecting and tracking motion is key to survival. The ability to extract auditory information from a noisy environment changes when your brain isn’t wired to rely on vision.
Our airspace has only started to become cluttered recently – many birds are struggling to navigate through it.
Your faithful companion sees the world differently than you do, but it’s a mistake to assume dogs only see black, white and shades of grey.
Top contributors
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Professeur Titulaire. École d'optométrie. Expertise en santé oculaire et usage des lentilles cornéennes spécialisées, Université de Montréal
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Postdoctoral Research Associate, Florida International University
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Professor, School of Psychology, The University of Queensland
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Technical Officer, Deakin University
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Senior Research Scientist, South Australian Museum; Flinders University
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Clinical Associate Lecturer, University of Sydney
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Professor in Robotics, Queensland University of Technology
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Professor of Biological Sciences, University of Maryland, Baltimore County
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Associate Professor, Department of Physiology, Monash University
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Senior Investigator at the National Eye Institute, Section on Perception, Cognition, and Action, National Institutes of Health
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Lecturer, Faculty of Business, Sport and Enterprise, Southampton Solent University
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Professor of Psychology, University of Washington
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Professeur d’économie, Mines Paris - PSL
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Associate Head of Education, University of Portsmouth
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Professor of Visual Development, University of Bradford