It is about function of eye.

1. Function of eye.

2. The eyes have several important functions that contribute to our vision and overall perception of the
world. Here are some key functions of the eyes:

3. 1. Vision: The primary function of the eyes is to provide us with vision. They detect and process
light, allowing us to see objects, colors, shapes, and movement. The eyes work in conjunction
with the brain to interpret the visual information received.
2. Light Sensitivity: The eyes are highly sensitive to light. They contain specialized cells called
photoreceptors (specifically rods and cones) that react to different wavelengths of light. Rods
are responsible for vision in low-light conditions, while cones are responsible for color vision
and detailed visual acuity in brighter conditions.
3. Focus and Accommodation: The eyes have the ability to focus on objects at varying
distances. This is achieved through a process called accommodation, where the shape of the
lens inside the eye changes to adjust the focal length and bring objects into clear focus. This
enables us to see objects clearly both up close and at a distance.
4. Depth Perception: Our eyes work together to provide us with depth perception, allowing us
to perceive the relative distances between objects. By comparing the slightly different images
received by each eye, the brain can calculate depth and perceive the three-dimensional
nature of the world.
5. Peripheral Vision: While the center of the visual field is focused and detailed, our eyes also
have the ability to detect motion and objects in our peripheral vision. This helps us to be
aware of our surroundings and detect potential threats or interesting stimuli.
6. Tear Production and Lubrication: The eyes produce tears to keep the surface of the eye moist
and lubricated. Tears help to nourish the eyes, protect against infection, and wash away
foreign particles or irritants.
7. Emotional Expression: The eyes play a significant role in non-verbal communication. They can
express a wide range of emotions, such as happiness, sadness, surprise, or anger, through
subtle changes in the shape, size, and movement of the pupils and the muscles around the
eyes.
Overall, the eyes are incredibly complex and vital organs that allow us to experience and interact with
the visual world around us.