Please provide your email address to receive an email when new articles are posted on . BARCELONA, Spain — ESCRS guidelines for refractive surgery are a work in progress, expected to be released in ...

The negative refraction of electrons in graphene has been seen for the first time in experiments done by physicists in the US. The work represents an important advance in the fabrication of graphene ...

Refractive errors are common eye issues that can cause blurry or distorted vision. Treatment usually involves wearing glasses or contact lenses or getting procedures ...

Please provide your email address to receive an email when new articles are posted on . Cataract surgery remains one of the most common surgeries performed today, with millions of patients treated ...

The work was published in Science ("Gate-tunable negative refraction of mid-infrared polaritons"). Basic principle of the “polariton transistor”. The van der Waals heterostructure is constructed by ...