The nurse is examining the eye. The client asks about the specific structures within the eye that are responsible for refraction of light rays
The nurse accurately states that the following structures are involved in this process: Standard Text: Select all that apply. 1. Lens
2. Macula
3. Cornea
4. Iris
5. Optic disc
1,3
Rationale 1: Lens. The lens is located directly behind the pupil and is used to refract light through the eye.
Rationale 2: Macula. The macula is located within the retina and does not assist with light refraction.
Rationale 3: Cornea. The cornea is a transparent part of the eye and located anteriorly. It allows light to enter the eye and assists with refraction.
Rationale 4: Iris. The iris controls the amount of light that enters the eye, but is not associated with refraction.
Rationale 5: Optic disc. The optic disc is where the optic nerve and retina meet. It is where the vascular network enters the eye. This structure is not associated with refraction.
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