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2.4 The eye

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Question 10
F

A cataract reduces the amount of light reaching healthy receptor cells. Spectacles do not restore clear vision.

Which treatment directly addresses the cause?

[1]
A

Replace the cloudy lens with a transparent artificial lens.

B

Replace the healthy retina with a transparent artificial layer.

C

Reshape the cornea so that it refracts light more strongly.

D

Reshape the iris so that it permanently increases pupil size.

Markscheme

2.4 The eye Questions

  1. GCSE
  2. /Biology
  3. /2.4 The eye

42 exam-style questions on Edexcel GCSE Biology 2.4 The eye, covering 2.4.1 Structure and function of the eye and 2.4.2 Eye defects and their correction. Each one has a worked solution and a mark scheme showing where the marks go.

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