The middle layer of the eye that absorbs excess light.

• A. Choroid
• B. Retina
• C. Iris
• D. Lens

Answer: (A)

The middle layer of the eye most important for absorbing excess light is the pigmented, vascular tissue called the choroid. It sits between the sclera and the retina and contains dark pigment that absorbs stray light, preventing reflections and glare inside the eye so the image stays sharp. It also ships blood to nourish the retina.

The iris controls how much light enters by changing pupil size, but its main role isn’t absorbing excess light. The lens focuses light onto the retina and doesn’t absorb much light. The retina is the light-detecting layer at the back of the eye, not primarily responsible for soaking up stray light.