For this reason, looking at an object in the dark, it’s easier to focus if looking slightly to the side of the object and not directly at it. The peripheral part of the retina is composed of approx. This allows the human eye to achieve a sharp and visually detailed colour vision, crucial for reading for example. Whereas, the most important one part of the macula is its centre called the fovea, where the highest concentration of cones are located. The part with a high concentration of cones is called the macula, which is around 5.5mm. 7 million cones located predominantly in the central part. These retinal layers are connected by synapses and supported by the outer layer of pigment epithelium which provides nutrients to the retina. Reception of light rays, transmission to the bipolar cell layer and ganglion cell layer and finally transmission through the optic nerve. It’s made of neuron layers that can be divided into 4 main groups based on the stages of processing the light that enters the eye, as such: The retina in human adults is 0.5mm thick and 22mm in diameter and is considered to be the most important part of the eye. However, the retina and the camera sensor, both play the same role in transforming light photons into electrical impulses. The impressive layers of tissue that form the retina are more complex than any camera sensor on the market, be it an analogue film or digital CCD/CMOS sensor.

Now we are going to focus on the retina and its functions. In our previous post, we have introduced the main similarities between the eye and the camera. Retina and Its Functions – The Role of 150 Million Receptors and 1 Million Optic Nerve Fibres

Retina location and function