ZONULAR FIBERS Meaning and
Definition
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Zonular fibers, also known as zonules or suspensory ligaments, refer to a network of delicate, thread-like structures within the eye that support and hold the lens in place. These fibers are a part of the ciliary zonule, which is made up of several hundred to thousands of individual zonular fibers.
The zonular fibers originate from the ciliary body, a ring-shaped structure located at the periphery of the iris, and attach to the lens capsule, which encapsulates and surrounds the lens. These fibers form a resilient and flexible network, allowing the lens to change shape and adjust its focal point for near or far vision.
The primary function of zonular fibers is to suspend the lens in its correct position within the eye, facilitating accommodation, the ability of the lens to change its shape and focus on objects at varying distances. When these fibers are taut, the lens is flattened, offering clear distance vision. Conversely, when they relax, the lens thickens, enabling the eye to focus on near objects.
Pathological changes or weakening of the zonular fibers can lead to various eye conditions, such as zonular dehiscence where the fibers become detached, or zonular dislocation, in which the lens shifts out of position. These conditions can cause blurred vision, visual disturbances, and may require surgical intervention to rectify. Zonular fibers play a crucial role in maintaining the structure and function of the lens within the eye, ensuring clear and accurate vision.
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Fibrae zonulares, the interlacing fibers of the zonula ciliaris.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for ZONULAR FIBERS
- zonular fiberq
- zonular fiberr
- zonularfibeers
- z onular fibers
- zo nular fibers
- zon ular fibers
- zonu lar fibers
- zonul ar fibers
- zonula r fibers
- zonular f ibers
- zonular fi bers
- zonular fib ers
- zonular fibe rs
- zonular fiber s
Etymology of ZONULAR FIBERS
The word "zonular" in "zonular fibers" comes from the Latin word "zona", which means "belt" or "girdle". It indicates a structure that forms a belt-like shape. In the context of "zonular fibers", these fibers form a circular belt or band-like structure. It is commonly used to describe specific fibers found in the eye, specifically the suspensory ligaments of the lens.
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