Which term refers to the vascular middle layer of the eye?

Which term refers to the vascular middle layer of the eye?

• A. Choroid
• B. Uvea
• C. Cornea
• D. Lens

Answer: (A)

Choroid is the vascular middle layer of the eye. It sits between the sclera and the retina and is packed with blood vessels that nourish the outer retina and help support its metabolic needs. The term uvea refers to the vascular tunic as a whole, including the iris and ciliary body in front plus the choroid behind; so while related, it’s a broader name for the entire vascular layer, not the specific middle layer itself. The cornea and lens are avascular structures, meaning they contain no blood vessels, and rely on surrounding fluids for nourishment.

Choroid is the vascular middle layer of the eye. It sits between the sclera and the retina and is packed with blood vessels that nourish the outer retina and help support its metabolic needs. The term uvea refers to the vascular tunic as a whole, including the iris and ciliary body in front plus the choroid behind; so while related, it’s a broader name for the entire vascular layer, not the specific middle layer itself. The cornea and lens are avascular structures, meaning they contain no blood vessels, and rely on surrounding fluids for nourishment.