An older adult client shares with the nurse that, "I don't know what it is but it seems that I need more light for reading or even watching television as I get older." The nurse explains that aging may cause this change due to the:
a. Slower ability of the pupil to adjust to changes in lighting.
b. Impact arcus senilis has on visual acuity
c. Flattening and thinning of the cornea.
d. Retinal changes that begin to occur with aging.
ANS: A
A slowed ability of the pupil to accommodate to changes in light accounts for the need of this patient to have more light in order to read. Arcus senilis does not affect vision. It is true that the cornea becomes flatter and thinner with aging, which results in astigmatism. Astig-matism does not account for the need for increased light that this patient is reporting. The changes in the retina do not account for the need for increased light that this patient is re-porting.
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