Anatomical illustration of the human eye with key structures labeled.

Let’s go step by step to match each letter (A through L) with the correct part of the eye using the labels provided.

We are given a diagram of the human eye with letters pointing to different parts, and a list that tells us what each letter stands for. Our job is to make sure we understand which label goes with which letter — but since the matching is already done in the image, we just need to confirm or use it correctly if there was a question. However, looking at the setup, it seems like the task might be to simply recognize or learn the parts — but since no specific question is asked beyond “solve the problem,” and the image already has all answers labeled, perhaps the real task is to verify or restate the matches clearly.

But wait — actually, looking again: the image shows the diagram with letters A–L, and below it, a key that says:

A = Ciliary body
B = Ciliary zonule
C = Iris
D = Aqueous humor
E = Lens
F = Cornea
G = Vitreous humor
H = Optic disk
I = Fovea centralis
J = Sclera
K = Choroid
L = Retina

So if the student’s task is to label the diagram or match the letters to the names, then the answer is already provided in the key. But maybe the original homework question was something like “Label the parts of the eye” and this is the completed version? Or perhaps the student needs to memorize these?

Since no explicit question is written in the prompt, but the instruction says “Solve the problem accurately,” and the only thing shown is the labeled diagram + key, I think the intended task is to confirm or list the correct matches — possibly as a study aid.

Alternatively, maybe the student was supposed to fill in the blanks next to A–L, and now they’re checking their work. In that case, we can just present the full correct matching clearly.

Let me double-check one thing: sometimes diagrams have tricky placements. For example, let’s mentally walk through the eye structure:

- Front of eye: Cornea (F) → then aqueous humor (D) behind it → iris (C) controls pupil → lens (E) held by ciliary zonules (B) attached to ciliary body (A).
- Back half: vitreous humor (G) fills space → retina (L) lines back wall → choroid (K) under retina → sclera (J) outer white layer.
- At back: optic disk (H) where nerve exits → fovea centralis (I) is tiny spot in center of retina for sharp vision.

All matches look anatomically correct based on standard eye diagrams.

So, if the task was to identify or label the parts, here’s the complete correct pairing:

Final Answer:
A – Ciliary body
B – Ciliary zonule
C – Iris
D – Aqueous humor
E – Lens
F – Cornea
G – Vitreous humor
H – Optic disk
I – Fovea centralis
J – Sclera
K – Choroid
L – Retina