Neha’s Mother discovers that she is facing difficulty in reading the newspaper. Her doctor prescribed spectacles for her. Which of the following statements is/are true:

i. She suffers from hypermetropia where the near point is farther than the newspaper.

ii. A convex lens with a suitable power can help correct her vision.

iii. Her eye is defective and is forming image/jpgs behind the retina.

iv. A concave lens or a convex lens may be used to correct her vision

The correct answer is Option 2.

Key Points

• Neha's mother is suffering from hypermetropia, a condition where the near point of her eye is farther than normal, making it difficult to focus on nearby objects like a newspaper.
• In hypermetropia, the image is formed behind the retina, leading to difficulty in near vision.
• A convex lens is prescribed to correct hypermetropia as it helps converge light rays onto the retina.
• Hypermetropia is primarily caused by either a shortened eyeball or reduced curvature of the lens, making it less effective at focusing light.
• The statements i, ii, and iii are correct, as they describe the condition and the corrective measure accurately.

Additional Information

• Hypermetropia (Farsightedness):
  • It is a refractive defect of vision where distant objects are seen clearly but nearby objects appear blurred.
  • It can be corrected using a convex lens to focus light rays onto the retina.
  • Common causes include genetic factors, aging, or structural abnormalities of the eye.
• Convex Lens:
  • A convex lens is thicker in the middle and converges light rays.
  • It is used to treat hypermetropia by adjusting the focal point onto the retina.
• Retina and Image Formation:
  • The retina is the light-sensitive layer at the back of the eye where images are formed.
  • In hypermetropia, images are formed behind the retina due to improper focusing.
• Other Common Vision Defects:
  • Myopia (nearsightedness): Corrected with concave lenses.
  • Presbyopia: Age-related loss of near vision, often requiring bifocal or progressive lenses.