More people of all ages are getting knee replacement surgery. Yet because of several factors, thousands are not candidates. But now doctors at UCLA are studying a new, less invasive option and getting ...

Please provide your email address to receive an email when new articles are posted on . In recent years, the issue of correcting higher-order aberrations has become increasingly relevant, particularly ...

Pinhole cameras are not new; they have been around since the beginning of photography. The concept was around long before that. The ancient Chinese and Greeks understood the notion of a pinhole device ...

Please provide your email address to receive an email when new articles are posted on . Pinhole pupilloplasty has been documented to improve visual performance in cases with higher-order aberrations.

Researchers have used the centuries-old idea of pinhole imaging to create a high-performance mid-infrared imaging system without lenses. The new camera can capture extremely clear pictures over a ...