A shopper can read a price label held nearby clearly. A sign at the far end of the shop looks blurred.
State the name of this eye defect.
The shopper chooses laser eye surgery. Explain how this treatment changes the cornea to correct the blurred distant vision.
102 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.