Podcast
Questions and Answers
What is the function of the lacrimal glands in the eye?
What is the function of the lacrimal glands in the eye?
The lacrimal glands in the eye produce tears, which constantly moisten and cleanse the eye.
What are the two types of cells in the retina and what are their functions?
What are the two types of cells in the retina and what are their functions?
The two types of cells in the retina are cones and rods. Cones are sensitive to color and are used mainly for vision when it is light. Rods are used for vision when it is dark or dim.
What are the parts through which light rays pass before they focus on the retina, and what is the consequence of incorrect refraction?
What are the parts through which light rays pass before they focus on the retina, and what is the consequence of incorrect refraction?
The parts through which light rays pass before they focus on the retina are the cornea, the aqueous humor, the pupil, the lens, and the vitreous humor. If the rays are not refracted correctly by these parts, vision can be distorted or blurred.
