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Author Question: The nurse is testing an infant's visual acuity. By what age should the infant be able to fix on and ... (Read 20 times)

swpotter12

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on: Jun 28, 2018
The nurse is testing an infant's visual acuity. By what age should the infant be able to fix on and follow a target?
 
  a. 1 month
  b. 1 to 2 months
  c. 3 to 4 months
  d. 6 months

Question 2

A nurse is preparing to test a school-age child's vision. Which eye chart should the nurse use?
 
  a. Denver Eye Screening Test
  b. Allen picture card test
  c. Ishihara vision test
  d. Snellen letter chart


TheNamesImani

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Reply #1 on: Jun 28, 2018
Answer to Question 1

ANS: C
Visual fixation and following a target should be present by ages 3 to 4 months. One to 2 months is too young for this developmental milestone. If the infant is not able to fix and follow by 6 months, further ophthalmologic evaluation is needed.

Answer to Question 2

ANS: D
The Snellen letter chart, which consists of lines of letters of decreasing size, is the most frequently used test for visual acuity for school-age children. Single cards (Denverletter E; Allenpictures) are used for children ages 2 years and older who are unable to use the Snellen letter chart. The Ishihara vision test is used for color vision.


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