Apple devices have been running HiDPI screens smoothly for years, while Windows and Android still struggle at times to make it work. Here's a look at what "Retina" means and why it's still important.

Your eyes are relatively small parts of your body, but they’re immensely complex. Your eyes are full of dozens of different parts, all of which work together to produce your vision. One of the most ...

The retina is the innermost layer of the eye, and it features many light-sensitive photoreceptor cells. These cells detect light and convert it into electrical signals, which travel through the optic ...

A retinal tear occurs when a break develops in the layer of light-detecting cells in the back of the eye. This layer is called your retina. Retinal detachment occurs when the retina pulls away from ...

(1) For Apple's screen technology, see Retina Display. (2) A display technology that beams images directly onto a person's retina. In the early stages of development as of 2025, a virtual retinal ...