The eye’s lens is a thin, transparent disk located behind the iris that bends light to focus on the retina. The crystalline lens changes shape and helps the eye see objects of various distances. This process, known as accommodation, is similar to the process of focusing a photographic camera. As the lens ages, it can lose its strength and become damaged. However, newer lens materials make it easier to see and are better for most people.

The lens is made of biconvex cells and has a nearly transparent surface. Its structure allows light to pass through and is shaped like a circle. Its refractive index is proportional to the distance and size of the objects that the eye can focus on. The lens’s crystallin protein expression, along with its corresponding korean circle lenses AU cellular structures, helps it maximize transparency. The fluid surrounding the lens acts as a waste removal medium and removes toxins and other substances that can be harmful to the eye.

The lens is a complex structure that functions to focus light onto the retina. Its transparency and refractive index can change depending on the size of the object and its distance. The lens refracts light into an angle that is proportional to its size and distance. Changing the shape of the lens will change the focal distance of the eye, which changes the focus of light. To improve the way the lens focuses light, the optical quality must be good.