ANATOMY

Detailed explanation-1: -Vertebrate eye lens growth occurs through a unique and ubiquitous mechanism (reviewed in [2]). New epithelial cells, produced just inside the capsule in the equatorial region elongate up to several hundred times during the process of differentiation into fiber cells.

Detailed explanation-2: -In the adult, the lens is typically 10 mm in diameter and has an axial length of about 4 mm, though it is important to note that the size and shape can change due to accommodation and because the lens continues to grow throughout a person’s lifetime.

Detailed explanation-3: -The eye lens is unique in that it grows throughout life by the addition of new cells inside the surrounding capsule. The old cells are not discarded or dismantled but, instead, are packed into the centre of the organ.

Detailed explanation-4: -Presbyopia is caused by a hardening of the lens of your eye, which occurs with aging. As your lens becomes less flexible, it can no longer change shape to focus on close-up images. As a result, these images appear out of focus.

Detailed explanation-5: -The eye lens becomes thin when the ciliary muscle and it becomes thicker when the ciliary muscle.