Nanometer-scale growth of cone cells tracked in living human eye

Humans see color thanks to cone cells, specialized light-sensing neurons located in the retina along the inner surface of the eyeball. The actual light-sensing section of these cells is called the outer segment, which is ...

Nanoparticles help researchers deliver steroids to retina

Hitching a ride into the retina on nanoparticles called dendrimers offers a new way to treat age-related macular degeneration and retinitis pigmentosa. A collaborative research study among investigators at Wayne State University, ...

Discovery alters conventional understanding of sight

A discovery by a team of researchers led by a Syracuse University physicist sheds new light on how the vision process is initiated. For almost 50 years, scientists have believed that light signals could not be initiated unless ...

Nanosized diamonds enable progress in retinal prostheses

Research groups in several countries are making progress in retinal prosthesis development. If they achieve their aims, patients who have gone blind, due to loss of their photoreceptors, could recover a better simplified ...

Researchers report progress using iPS cells to reverse blindness

Researchers have used cutting-edge stem cell technology to correct a genetic defect present in a rare blinding disorder, another step on a promising path that may one day lead to therapies to reverse blindness caused by common ...

EyeLock brings biometric security to your websites

(PhysOrg.com) -- Biometric security is always a field of interest for those people who need to keep your data secure. Currently, it is used in a wide variety of high security applications, mostly by large companies with large ...

There's more to implants than meets the eye

In this month's Physics World, Richard Taylor, professor of physics, psychology and art at the University of Oregon, warns that artificial retinal implants – a technology fast becoming a reality – must adapt to ...

Sharks are colour-blind: study

Sharks may be unable to distinguish between colours, according to a lab study published on Tuesday that could benefit swimmers, surfers and sharks themselves.

Melanopsin looks on the bright side of life

Better known as the light sensor that sets the body's biological clock, melanopsin also plays an important role in vision: Via its messengers-so-called melanopsin-expressing retinal ganglion cells, or mRGCs-it forwards information ...

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