A nurse assesses a client's eyes by testing the cardinal fields of vision for coordination and alignment. What eye characteristic is being assessed by this process?
A) Visual acuity
B) Extraocular movements
C) Peripheral vision
D) Existence of cataracts
Ans: B
The nurse tests for extraocular movements by assessing the cardinal fields of vision for coordination and alignment. Normally both eyes move together, are coordinated, and are parallel. Visual acuity is assessed with the Snellen chart. Tests for peripheral vision (or visual fields) are used to assess retinal function and optic nerve function. Full peripheral vision is normal. Cataracts are noted by inspection (cloudiness of the lens).
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