The term "clear" refers to the state of being free from blur or distortion, allowing for sharp and focused vision.
Cornea: The cornea is the transparent outer layer at the front of the eye that helps to focus incoming light onto the retina.
The lens is a flexible structure in the eye located behind the iris that further focuses light onto the retina for clear vision.
Fovea: The fovea is a small area in the center of the retina that contains a high concentration of cone cells responsible for detailed central vision.