Science (086) — AI-generated practice question

Two causes of myopia are:

1. Excessive curvature of the eye lens — the lens becomes too curved, causing the image of a distant object to form in front of the retina instead of on it.
2. Elongation of the eyeball — the eyeball becomes too long, so the retina lies beyond the focal point of the lens.

Source: Chapter 10, Section 10.2 – Defects of Vision and their Correction

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The question asks specifically for causes, not symptoms or correction. Both points must be stated for full 2 marks (1 mark each). Examiners expect the exact textbook phrasing: "excessive curvature of the eye lens" and "elongation of the eyeball." Simply writing "weak eye lens" or "long eye" without the correct terminology may lose marks. No diagram is needed for a very short answer.