Bob Had Perfect Vision Until He Was 45, and Then

question 307

Multiple Choice

Bob had perfect vision until he was 45, and then he needed to start wearing glasses for reading. Most likely, Bob has developed a visual problem called:

• A) presbyopia, caused by the lens of the eye losing its flexibility.
• B) astigmatism, caused by a gradual shrinking of the eyeball.
• C) myopia, caused by a thickening of the cornea.
• D) hyperopia, caused by the eyeball becoming elongated.

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Definitions:

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Antibody Screening Test

A test for detecting the antibodies that the body makes against HIV.