Definition of long-sightedness (hyperopia)

Steps:

• Long-sightedness means the eyeball is too short or focusing power too weak, causing near images to focus behind the retina.
• Close objects appear blurry, while distant objects focus properly on the retina.
• Correction uses a convex lens to bend incoming light rays forward onto the retina.
• Evaluate each option against this definition to identify accurate statements.

Why A is correct:

• Hyperopia definition: impaired near vision compared to emmetropia (normal vision), due to insufficient convergence for close objects.

Why the others are wrong:

• B: Distant vision equals normal; uncorrected hyperopia does not enhance it.
• C: This statement is correct—convex lenses converge light for hyperopia correction.
• D: Close object images focus behind the retina in hyperopia; front focus occurs in myopia.

Final answer: A and C