The Eye (AQA GCSE Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What are the eye's receptors sensitive to?
What are the eye's receptors sensitive to?
Light intensity and colour
Where is the retina located in the eye?
Where is the retina located in the eye?
At the back of the eye
What does the optic nerve carry to the brain?
What does the optic nerve carry to the brain?
Impulses from the retina
What does the cornea do to light entering the eye?
What does the cornea do to light entering the eye?
Bends and focuses it onto the retina
What happens to the pupil in bright light?
What happens to the pupil in bright light?
It becomes smaller
Which muscles contract to make the pupil larger in dim light?
Which muscles contract to make the pupil larger in dim light?
Radial muscles
What shape does the lens become to focus on a near object?
What shape does the lens become to focus on a near object?
Thicker and more curved
What do ciliary muscles do when focusing on a near object?
What do ciliary muscles do when focusing on a near object?
Contract
What happens to suspensory ligaments when focusing on a distant object?
What happens to suspensory ligaments when focusing on a distant object?
They tighten
What is the problem in myopia?
What is the problem in myopia?
Lens is too curved
Which type of lens is used to treat myopia?
Which type of lens is used to treat myopia?
Concave lenses
How does laser eye surgery treat myopia?
How does laser eye surgery treat myopia?
Reduces thickness of the cornea