Itchy, red and watery eyes are familiar symptoms for many people, especially during the spring and summer pollen season.

The discovery fundamentally changes the understanding of a structure in the avian eye that has been misinterpreted for centuries.

A new study explains how birds maintain sharp eyesight despite their retinas lacking blood vessels, finally resolving a centuries-old biological paradox.

Neural tissue normally dies quickly without oxygen. Yet bird retinas—among the most energy-demanding tissues in the animal ...

Eye drop nanoparticles that shrink over time overcome the eye's natural defenses, delivering protein drugs to the retina and ...

Researchers have identified a metabolically sensitive cell subtype in the eye's drainage system which shows early signs of ...

Background Both host and microbe metabolism of tryptophan (Trp) is altered in diabetes; however, the molecular mechanisms are ...

Introduction: The use of human donor tissue has the potential to accelerate translational research and support the development of effective human medicines. However, post-mortem sample degradation and ...

A fancy touchscreen in your new car might seem like the height of luxury, but experts warn that it could be putting you in ...

Swimming at a crawl with cloudy eyes and mottled skin, the Greenland shark looks like it's seen better days. The shark's eyes were thought to be barely functional, as it spends most of its time in ...

Greenland sharks maintain sharp vision for centuries, revealing powerful DNA repair and eye-protection strategies that may inspire future approaches to lifelong human eyesight.

Dry eye disease happens when the lacrimal glands do not make enough tears, or the tears do not have the right balance of ingredients to protect the eye surface. Tears are not just “water”. They help ...