Many parts of the eye work to focus or control light except the(1 point)
pupil.
retina.
cornea.
lens.
C. Retina
To determine which part of the eye does not work to focus or control light, we can analyze the functions of each option given:
1. Pupil: The pupil is the small opening in the center of the iris through which light enters the eye. While it doesn't actively focus or control light, it adjusts its size to regulate the amount of light that enters the eye. However, it doesn't contribute to the process of optical focusing.
2. Retina: The retina is the layer of tissue at the back of the eye that contains photoreceptor cells (rods and cones) responsible for capturing light and converting it into electrical signals for the brain to process. Although the retina plays a crucial role in detecting light, it doesn't actively focus or control it.
3. Cornea: The cornea is the transparent, dome-shaped structure that covers the front part of the eye. It acts as a protective outer layer and also refracts incoming light, helping to focus it onto the retina at the back of the eye.
4. Lens: The lens is a transparent structure located directly behind the pupil and iris. It has the ability to change shape (accommodation) to adjust the focus of light onto the retina. By altering its curvature, the lens helps to bring images into clear focus on the retina.
Based on these explanations, the correct answer is the "retina." Even though the retina is essential for detecting light and transmitting signals to the brain, it does not actively focus or control the light entering the eye.