A child has correction spectacles of power -3 D. Determine the vision defect and also find the far point of the child without spectacles.

Explanation

To solve the problem, we need to determine the vision defect of the child and find the far point without spectacles. Let's break it down step by step.

### Step 1: Identify the Vision Defect
The power of the spectacles is given as -3 D (diopters). The negative sign indicates that the child has a vision defect known as **myopia**, or nearsightedness. This means the child can see nearby objects clearly, but distant objects appear blurry.

**Hint:** Remember that negative power indicates myopia, while positive power indicates hyperopia (farsightedness).

### Step 2: Understand the Concept of Far Point
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