The functions of the organs of sight

In this topic

• How we see
• Accommodation, the pupil reflex and two-eyed vision
• Adaptation to light and defects of vision
• Eye hygiene and first aid

Key terms

• Accommodation
• Ciliary muscle
• Lens
• Retina
• Rhodopsin
• Pupil reflex
• Binocular vision
• Adaptation
• Myopia
• Hypermetropia
• Astigmatism
• Presbyopia

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