The innermost tunic (layer) of the eyeball consisting of the retina is

The innermost tunic of the eyeball, which is called the retina, is responsible for capturing and processing visual information. The retina is a thin layer of tissue that lines the back of the eye. It contains specialized cells called photoreceptors, which are responsible for detecting light and converting it into electrical signals that can be interpreted by the brain. The retina also contains other types of cells, such as bipolar cells and ganglion cells, which help transmit the visual signals to the optic nerve. Overall, the retina plays a crucial role in our ability to see and perceive the world around us.