A new model is bringing scientists a step closer to understanding the kinds of light signals produced when two supermassive black holes, which are millions to billions of times the mass of the Sun, ...

Have you ever stood up too fast or rubbed your eyes, only to notice that your vision was covered in flashes of light? You may have described it or heard it described as “seeing stars.” The medical ...

Thanks to a new wearable visual simulator, patients and surgeons are able to see the effects of an intraocular multifocal lens -- which allows seeing at different distances -- in a realistic way ...

Researchers in Spain have developed an instrument that can measure and manipulate the optical aberrations from both of a patient's eyes simultaneously. They say that their device could be used to ...