👉 A retina, also known as a photoreceptor cells, is one of the two main types of retina in the human eye. It consists of approximately 20 million rods and 50 million cones that are responsible for detecting light and transmitting it to the brain. The retinal ganglion cells (RGCs) play a crucial role in visual perception by sending signals from the photoreceptors to the ganglion cells, which then transmit these signals to the neurons of the retina.
