Higher Tier Only: Correcting Vision Problems with Lenses
Part of Lenses & Images · GCSE GCSE Physics revision
This higher tier covers Higher Tier Only: Correcting Vision Problems with Lenses within Lenses & Images for GCSE Physics. Revise Lenses & Images in Waves for GCSE Physics with 13 exam-style questions and 15 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 11 of 14 in this topic. This section is most useful once the core foundation idea is secure, because it adds the detail that pushes answers higher.
Topic position
Section 11 of 14
Practice
13 questions
Recall
15 flashcards
🎓 Higher Tier Only: Correcting Vision Problems with Lenses
Short-sightedness (myopia): The lens of the eye is too powerful (too converging), causing images to focus in front of the retina. Corrected with a concave (diverging) lens, which spreads rays slightly before they enter the eye, so the eye lens can focus them on the retina.
Long-sightedness (hyperopia): The lens is not powerful enough, causing images to focus behind the retina. Corrected with a convex (converging) lens, which converges rays slightly before they enter the eye, helping the eye lens to focus the image on the retina.
This is testable as a describe/explain question: you need to state the problem (where rays focus), the type of corrective lens used, and why it works.
Quick Check: A student places an object between a convex lens and its focal point. Describe the image formed.
The image is virtual (cannot be projected on a screen), upright, and magnified. This is the principle of a magnifying glass — the object is placed inside the focal length to produce a larger, upright virtual image on the same side as the object.
Keep building this topic
Read this section alongside the surrounding pages in Lenses & Images. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Lenses & Images
What does a convex (converging) lens do to parallel rays of light?
Explain the difference between a converging lens and a diverging lens. Include what each type does to parallel rays of light.
Quick Recall Flashcards
13 questions on Lenses & Images — practise free
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