Correct answer: myopia
Explanation:
Myopia, also known as nearsightedness, is a vision defect where a person cannot see distant objects clearly, but can see nearby objects without difficulty.
This happens because the image of a distant object is formed in front of the retina instead of on it. It is usually caused by: - An elongated eyeball, or - A too curved eye lens.
Correction: Myopia is corrected using a concave lens, which diverges light rays before they enter the eye.
Other options:
- Hypermetropia: Farsightedness – difficulty seeing nearby objects.
- Presbyopia: Age-related condition affecting both near and far vision.
- Angle of vision: Not a defect of vision.
Hence, the correct answer is: myopia.