B

Step 1: Understand the condition of hypermetropia. Hypermetropia, also known as farsightedness, is a common vision condition where distant objects can be seen clearly, but close ones do not come into proper focus.
Step 2: Analyze the nature of the defect. In hypermetropia, the light rays converge behind the retina because the eyeball is too short (a 'long-side defect'). This is the reason why nearby objects appear blurry.
Step 3: Review the options:
- Option A: This describes a shortsightedness defect, which is incorrect.
- Option B: Correct as it describes a long-side defect.
- Option C: This relates more to presbyopia, a condition common with aging, but not specifically hypermetropia.
- Option D: Incorrect as option B is the right choice.

Therefore, the correct answer is Option B.