EVERYDAY SCIENCE

Detailed explanation-1: -Some of this light enters the eye through an opening called the pupil (PYOO-pul). The iris (the colored part of the eye) controls how much light the pupil lets in. Next, light passes through the lens (a clear inner part of the eye). The lens works together with the cornea to focus light correctly on the retina.

Detailed explanation-2: -Light detected by the retina of your eye is converted to nerve impulses that travel down the optic nerve. Some of these nerve impulses go from the optic nerve to the muscles that control the size of the pupil. More light creates more impulses, causing the muscles to close the pupil.

Detailed explanation-3: -Light passes through the front of the eye (cornea) to the lens. The cornea and the lens help to focus the light rays onto the back of the eye (retina). The cells in the retina absorb and convert the light to electrochemical impulses which are transferred along the optic nerve and then to the brain.

Detailed explanation-4: -Light from an object enters the eye through the pupil and travels to the back of the eye, forming an image on the retina.

Detailed explanation-5: -Light enters our eyes through a thin membrane known as the cornea.