Researchers have developed a noninvasive technique that can capture images of rod and cone photoreceptors with unprecedented detail. The advance could lead to new treatments and earlier detection for ...

The researchers customized this adaptive optics scanning light ophthalmoscope to improve imaging resolution by strategically blocking light in various locations of the instrument. (Courtesy: Johnny ...

NOW that the optical properties of the blowpipe blue cone have been so critically investigated, may I draw the attention of the readers of NATURE who are interested in the history of spectrum analysis ...