Which explains the importance of detecting strabismus in young ...

[schs14]

Which explains the importance of detecting strabismus in young children?
 
  a. Color vision deficit may result.
  b. Amblyopia, a type of blindness, may result.
  c. Epicanthal folds may develop in the affected eye.
  d. Corneal light reflexes may fall symmetrically within each pupil.

Question 2

During a funduscopic examination of a school-age child, the nurse notes a brilliant, uniform red reflex in both eyes. The nurse should recognize that this is which?
 
  a. A normal finding
  b. A sign of a possible visual defect and a need for vision screening
  c. An abnormal finding requiring referral to an ophthalmologist
  d. A sign of small hemorrhages, which usually resolve spontaneously

[nickk12214]

Answer to Question 1

ANS: B
By the age of 3 to 4 months, infants are able to fixate on one visual field with both eyes simultaneously. In strabismus, or cross-eye, one eye deviates from the point of fixation. If misalignment is constant, the weak eye becomes lazy, and the brain eventually suppresses the image produced from that eye. If strabismus is not detected and corrected by age 4 to 6 years, blindness from disuse, known as amblyopia, may occur. Color vision is not the only concern. Epicanthal folds are not related to amblyopia. In children with strabismus, the corneal light reflex will not be symmetric for each eye.

Answer to Question 2

ANS: A
A brilliant, uniform red reflex is an important normal finding. It rules out many serious defects of the cornea, aqueous chamber, lens, and vitreous chamber.