The Eye Accommodation

• What is accommodation in the context of the eye?

  Changing lens shape to focus on objects
• What is the role of the lens in accommodation?

  To focus light on the retina
• What part of the eye initially refracts the light entering?

  The cornea
• What is the purpose of accommodation by the eye?

  To see near and distant objects clearly
• What happens to the ciliary muscles when focusing on a near object?

  They contract
• What happens to the suspensory ligaments when focusing on a near object?

  They loosen
• How does the lens change shape to focus on near objects?

  It becomes thicker and more curved
• How does a thicker, more curved lens affect light refraction?

  It refracts light more strongly
• Where is the light focused when viewing near objects?

  On the retina
• What happens to the ciliary muscles when focusing on a distant object?

  They relax
• What happens to the suspensory ligaments when focusing on a distant object?

  They are pulled tight
• How does the lens change shape to focus on distant objects?

  It is pulled flat and thin
• How does a flatter, thinner lens affect light refraction?

  It refracts light slightly
• How do ciliary muscles, suspensory ligaments and lens shape change when focusing on near objects?

  • Ciliary muscles: Contract
  • Suspensory ligaments: Loosen
  • Lens shape: Round/Thick
  • Light Refraction: More
• How do ciliary muscles, suspensory ligaments and lens shape change when focusing on distant objects?

  • Ciliary muscles: Relax
  • Suspensory ligaments: Stretched/taut
  • Lens shape: Flat/Thin
  • Light Refraction: Less
• When viewing a distant object, are the ciliary muscles relaxed or contracted, and how does this affect the suspensory ligaments?

  Relaxed, causing stretched/taut ligaments