Case #7 Myopia

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History

A 23-year-old medical student complains that her/his vision at distance is not as good as it used to be. Uncorrected distance vision in each eye is 20/50 and with a pinhole it improves to 20/20, at distance and near.

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Question#1

How do you evaluate this problem?

Question #2

How does the pinhole improve the vision?

Question #3

Why is the near vision normal when the distance vision is not?

Question #4

Discuss three possible treatments for this condition.

Question #5

What possible systemic condition can be associated with the onset of this problem?

References

Michaels, DD: Visual Optics and Refraction - A Clinical Approach. St. Louis, 1985, CV Mosby, pp 174.

Sloane, AE: Manual of Refraction. Boston, 1961, Little Brown & Co. pp 29-34.

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last updated: 10/10/2011