Pupillometry, the precise measurement of pupil size and dynamics, has emerged as a valuable tool in evaluating both autonomic nervous system integrity and central neural function. In particular, ...

Until now, it has been difficult to maintain retinal ganglion cells deep inside organoids over extended periods. The supply of nutrients and oxygen in the densely packed tissues is limited, leading to ...

A gene therapy that targets a form of retinitis pigmentosa showed a signal to improve retinal function for up to 3 years after treatment, according to a small clinical trial. The phase 2 SKYLINE trial ...

Fact checked by Nick Blackmer Dark spots or squiggles drifting across your field of vision are called floaters.Floaters are more common as you age, when a substance called vitreous gel begins ...

There’s an old saying, attributed to writers from Cicero to Shakespeare, that says the eyes are the windows to the soul. But it may be more accurate to say that your eyes, and in particular your ...

MINNEAPOLIS/ST. PAUL (07/10/2025) — A University of Minnesota Medical School-led research team discovered that a cancer signaling pathway has previously unrecognized roles in retina and brain blood ...

The retina is a thin layer of neural tissue at the back of the eye that detects light and converts it into signals, sent to the brain. During development, all the specialized neurons in the ...

Both image photodetector arrays and retinas are pixelated sensors that dynamically extract various features from the visual scene—e.g., color, brightness, and contrast—before transmitting electrical ...

Gel-like fluids inside the eye help it maintain its shape, which plays an important role in overall eye health. These substances are called the vitreous humor and aqueous humor. Vitreous is a ...

Studies indicate that natural substances such as lutein, zeaxanthin and beta carotene help protect the eyes from light and age damage. Alongside carrots, there are additional foods good for the eyes.