What are the tunics of the eye?

• A. Fibrous tunic, vascular tunic, and neural tunic.
• B. Outer tunic, middle tunic, inner tunic.
• C. Retina, choroid, sclera.
• D. Cornea, iris, lens.

Answer: (B)

The eye’s layers are described as three tunics arranged from outer to inner: the outer tunic, the middle tunic, and the inner tunic. The outer tunic forms the protective coat and includes the sclera and cornea. The middle tunic, the vascular tunic or uvea, supplies blood and regulates light entry, and it includes the choroid, ciliary body, and iris. The inner tunic is the neural tunic, containing the retina where photoreceptors reside. This positional naming highlights how the eye is organized into distinct layers with different roles—protection, nourishment and light control, and sensory processing. While another common description uses tissue-type names (fibrous, vascular, neural), and some options list individual structures instead of the tunics themselves, the three-layer outer–middle–inner framework is the standard way to state the tunics.