The anterior eye segments, also known as the anterior segment of the eye, refer to the front part of the eyeball that is responsible for focusing incoming light onto the retina. It consists of several distinct structures, including the cornea, iris, pupil, ciliary body, and lens.
Firstly, the cornea is the clear, dome-shaped outermost layer of the eye that covers the iris and pupil. It serves as the primary refractive surface, bending the light as it enters the eye.
Secondly, the iris is the colored part of the eye surrounding the pupil. Its main function is to regulate the amount of light entering the eye by adjusting the size of the pupil.
The pupil is the small, round opening in the center of the iris through which light passes to reach the inner structures of the eye.
Next, the ciliary body is a muscular structure located behind the iris. It produces the aqueous humor, a clear fluid that nourishes the cornea and lens.
Lastly, the lens is a clear, flexible structure that helps to focus light onto the retina. It adjusts its shape to allow for near and far vision, a process known as accommodation.
Together, these structures of the anterior eye segment play a crucial role in the overall function of the eye, allowing for clear vision and effective light manipulation.
