A young child is diagnosed with both myopia and hypermetropia in different eyes. What is the most appropriate corrective approach?

Correct Answer: Providing glasses with different lenses for each eye (concave for one, convex for the other)

Step-by-Step Explanation:

1. Understanding Myopia (Nearsightedness):
Myopia occurs when parallel light rays coming from a distance focus in front of the retina instead of directly on it. This causes distant objects to appear blurry. To correct myopia, a diverging (concave) lens is used. The concave lens diverges incoming light rays before they enter the eye, allowing the image to focus accurately on the retina.

2. Understanding Hypermetropia (Farsightedness):
Hypermetropia occurs when light rays focus behind the retina, making near objects appear blurry. To correct hypermetropia, a converging (convex) lens is used. The convex lens converges incoming light rays, ensuring the image forms directly on the retina.

3. Addressing Anisometropia (Different Conditions in Each Eye):
In this specific case, the child has myopia in one eye and hypermetropia in the other eye. Since each eye suffers from a different refractive error, each eye requires its own specific optical correction:

- The eye with myopia requires a concave lens.
- The eye with hypermetropia requires a convex lens.

Therefore, the most appropriate corrective approach is to provide custom glasses containing different lenses tailored to each eye—specifically, a concave lens for the myopic eye and a convex lens for the hypermetropic eye.