Retina is a thin layer of tissue that line the back of eye and receive light ...

The pigmented layer in the eye is called the retina.

Retina:
The retina is a thin layer of tissue that lines the back of the eye. It is responsible for converting light into electrical signals that are sent to the brain for visual processing. The retina contains specialized cells called photoreceptors, which are responsible for detecting light and transmitting the information to the brain.

Function of the Retina:
The retina plays a crucial role in the process of vision. It is responsible for several important functions, including:

1. Photoreception: The retina contains two types of photoreceptor cells - rods and cones. Rods are more sensitive to low light levels and are responsible for peripheral and night vision. Cones are responsible for color vision and visual acuity in bright light conditions.

2. Signal Transmission: When light enters the eye, it passes through the cornea, lens, and vitreous humor before reaching the retina. The photoreceptor cells in the retina convert the light into electrical signals through a process called phototransduction. These signals are then transmitted to other cells in the retina, such as bipolar cells and ganglion cells, which further process and transmit the signals to the brain via the optic nerve.

3. Image Formation: The retina is responsible for forming a clear and focused image of the visual scene. The cells in the retina work together to process and integrate the signals from different parts of the visual field, allowing the brain to perceive a coherent and detailed image.

4. Color Vision: Cones in the retina are responsible for color vision. There are three types of cones, each sensitive to different wavelengths of light corresponding to red, green, and blue. The combination of signals from these cones allows us to perceive a wide range of colors.

Other Structures in the Eye:
While the retina is responsible for the pigmented layer in the eye, it is important to note the role of other structures as well:

- Cornea: The cornea is the transparent outermost layer of the eye. It helps to focus light onto the retina and protects the inner structures of the eye.

- Sclera: The sclera is the white, tough outer covering of the eye. It provides structural support and protects the delicate inner components of the eye.

In conclusion, the pigmented layer in the eye is called the retina. It is responsible for converting light into electrical signals and plays a crucial role in the process of vision.