Every sunrise and sunset sends the body a signal, keeping the circadian clock running on a roughly 24-hour cycle. This clock evolved so organisms could adapt to Earth's daily rotation, syncing their biology to the pattern ...
Many conditions that cause vision loss share a common feature: the gradual breakdown of the retina, the light-sensing tissue at the back of the eye. Although scientists know some of the structural changes that ensue as this ...
Jun 22, 2026
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Diabetes opens people to other noncommunicable diseases like obesity, retinopathy and cardiovascular diseases like heart attacks and hypertension. A recent study by researchers at the University of Virginia School of Medicine ...
Struggling to read more than six lines on an eye chart with fading letters may serve as a visual "yellow light" for older adults—raising red flags that routine exams sometimes fail to detect. A new University of Michigan ...
Jun 29, 2026
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Adelaide University researchers have carried out the first in-human trial of a new type of treatment for a leading cause of blindness in working age adults, with promising results.
22 hours ago
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A new study presents an artificial intelligence system that scans images of the retina to detect signs of diabetes, high blood pressure, high cholesterol, gout, osteoporosis and thyroid disease in seconds. The program—called ...
Jun 29, 2026
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One-third of the world's population is infected with the Toxoplasma parasite, which can cause ocular toxoplasmosis, an eye infection that can damage the retina and result in permanent vision loss. Although often seen as an ...
Jun 25, 2026
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The retina of the human eye contains 6–7 million cone cells. These cells contain light-sensitive proteins known as cone opsins. They enable us to perceive our surroundings in detail in daylight. They allow us to see the world ...
Jun 25, 2026
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The environment experienced by young zebrafish influences both the shape and electrical activity of the neurons in the eye, which affects subsequent behavior.
Jun 28, 2026
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Very preterm infants face up to a 50% higher risk of developmental challenges affecting movement, learning, language and behavior. Today, many of those challenges are not fully recognized until later in infancy or early childhood. ...
Jun 24, 2026
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