Lens derives its nutrition from
**Core Concept**
The lens of the eye derives its nutrition from the aqueous humor and vitreous humor, which are the clear fluids filling the anterior and posterior chambers of the eye, respectively. This process is essential for maintaining the transparency and structure of the lens.
**Why the Correct Answer is Right**
The lens receives its nutrients through diffusion from the surrounding aqueous and vitreous humors. This is facilitated by the lens's relatively thin and permeable capsule. As a result, the lens can obtain glucose, amino acids, and other essential nutrients necessary for its metabolic processes. This unique arrangement allows the lens to maintain a stable environment, which is critical for its transparency and function.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because the lens does not receive its nutrition directly from the choroid, which is a layer of blood vessels supplying the retina.
**Option B:** This option is incorrect because the lens is not nourished by the optic nerve, which transmits visual information from the retina to the brain.
**Option C:** This option is incorrect because the lens does not obtain its nutrition from the ciliary body, which is responsible for producing aqueous humor and regulating the shape of the lens.
**Clinical Pearl / High-Yield Fact**
The lens's unique nutritional arrangement is essential for maintaining its transparency and structure. This is why conditions that affect the aqueous and vitreous humors, such as uveitis or vitreous hemorrhage, can lead to lens opacification and vision loss.
**Correct Answer:** C. The lens derives its nutrition from the aqueous and vitreous humors.