A nurse is assessing a school-age child who has difficulty seeing the chalkboard clearly but has no trouble reading books up close. Based on this assessment, which condition should the nurse suspect, and what is the primary corrective intervention?

Astigmatism; suggest cylindrical lenses to correct blurred vision at all distances.

Hyperopia; recommend convex lenses to enhance near vision.

Presbyopia; advise age-related lens flexibility exercises to improve near vision.

Myopia; prescribe biconcave lenses to improve distance vision.