Which eye structure works with the cornea to focus light on the retina?

Which eye structure works with the cornea to focus light on the retina?

• A. Cornea
• B. Retina
• C. Lens
• D. Pupil

Answer: (C)

Light focusing in the eye is accomplished by two main refractive elements working together: the cornea bends most of the incoming light, and the lens provides the fine-tuning needed to bring a sharp image onto the retina. The lens adjusts its shape through accommodation, thickening for near objects to increase its bending power or thinning for distant objects to decrease it, so the image lands precisely on the retina. The pupil controls how much light enters, and the retina is the surface that receives the focused image. So the lens is the structure that works with the cornea to focus light on the retina.

Light focusing in the eye is accomplished by two main refractive elements working together: the cornea bends most of the incoming light, and the lens provides the fine-tuning needed to bring a sharp image onto the retina. The lens adjusts its shape through accommodation, thickening for near objects to increase its bending power or thinning for distant objects to decrease it, so the image lands precisely on the retina. The pupil controls how much light enters, and the retina is the surface that receives the focused image. So the lens is the structure that works with the cornea to focus light on the retina.