There are multiple treatment options for presbyopia, from simple solutions such as reading glasses or contact lenses to more complex procedures such as refractive eye surgery. Presbyopia is the ...

Lake Oswego, OR - January 08, 2026 - PRESSADVANTAGE - At Tersigni Vision, a growing number of patients are asking ...

Recent experiments that demonstrate the negative refraction of light could bring a heated scientific debate to a close, and give negative-index materials a positive future Figure 1: Negative-index ...

Please provide your email address to receive an email when new articles are posted on . According to Feulner, most patients who undergo cataract surgery have some form of undiagnosed ocular surface ...

Researchers in Korea have created a new metamaterial with the most extreme positive index of refraction yet – a whopping 38.6. The metamaterial operates at terahertz frequencies and the team believes ...

Laser eye surgeries have become popular for their efficiency, reduced healing time, and reduced post-op complications. In the years since these technologies were first developed, there have been ...

Nearsightedness (myopia) and Farsightedness (hyperopia or presbyopia) are well-known refractive errors or refractive eye diseases. According to the World Health Organization (WHO), there are ...

A research team develops a transparent silicon without visible light loss by controlling the silicon atomic structure. A POSTECH research team has developed a transparent amorphous silicon that ...

A property of a material that changes the speed of light, computed as the ratio of the speed of light in a vacuum to the speed of light through the material. When light travels at an angle between two ...

Researchers reported a novel technology enhancing the high transparency of refractive polymer film via a one-step vapor deposition process. The sulfur-containing polymer (SCP) film produced by ...