Why does Parakeet eyes blink?

Blinking helps in maintaining moisture and lubrication of the eyes. Blinking helps to spread the tears over the surface of the eye, which helps to keep the eye moist and lubricated. This is important because the surface of the eye is exposed to the air, which can cause it to dry out.

Blinking helps to remove foreign objects from the eyes. When a foreign object enters the eye, blinking can help to dislodge it. The tears that are produced when blinking help to wash away the foreign object, and the eyelashes help to trap it so that it can be removed.

Blinking helps to protect the eyes from bright light. When the eyes are exposed to bright light, blinking helps to reduce the amount of light that enters the eye. This is important because too much light can damage the retina, which is the light-sensitive tissue at the back of the eye.

Blinking helps to reduce the risk of infection. When the eyelids blink, they help to create a barrier that protects the eyes from bacteria and other microorganisms. This is important because the eyes are constantly exposed to these microorganisms, which can cause infections.