Accommodation

• What is the process of accommodation in the eye?


  It is a reflex that changes the refractive power of the lens.
• Why is accommodation important for vision?


  It allows you to see both near and distant objects clearly.
• What are the important parts of the eye involved in accommodation?

  The cornea, lens, ciliary muscles, and suspensory ligaments.
• How do the cornea and lens contribute to focusing light?


  The cornea refracts light consistently, while the lens fine-tunes the refraction.
• What is the fovea in the eye?


  It is the spot on the retina where light must be focused for clear vision.
• How does the lens change shape for nearby objects?


  The lens becomes short and fat to refract light more strongly.
• What happens to the ciliary muscle when focusing on nearby objects?


  The ciliary muscle contracts and moves inwards towards the lens.
• What is the role of the suspensory ligaments during accommodation?


  They attach the lens to the ciliary muscle and can be slackened or tautened.
• How does the lens adjust for distant objects?


  The lens is stretched out to reduce its curvature.
• What is the difference between the ciliary muscle and the suspensory ligaments?


  The ciliary muscle can contract and relax, while the suspensory ligaments cannot.
• What is long-sightedness?


  It is when a person can see distant objects clearly but struggles with nearby objects.
• How do glasses help long-sighted individuals?


  They contain convex lenses that provide extra refracting power.
• What is short-sightedness?


  It is when a person can see nearby objects clearly but struggles with distant objects.
• How do glasses help short-sighted individuals?


  They contain concave lenses that counteract over-refraction of light.
• What is the medical term for long-sightedness?

  Hyperopia
• What is the medical term for short-sightedness?

  Myopia