the eye

• The lens is held in place by suspensory ligaments, which are attached to the ciliary muscles.
• What happens to the ciliary muscle when we look at distant objects?


  The ciliary muscle relaxes, causing the lens to become flatter.
• What is the effect of the ciliary muscle contracting when focusing on near objects?


  It allows the lens to become more rounded and refract more light.
• What conditions can arise if the lens becomes too thick or too thin?


  Nearsightedness (myopia) or farsightedness (hyperopia).
• What is accommodation in the context of vision?


  It is the process whereby the shape of the lens changes to focus on objects at different distances.
• How does accommodation function in young people?


  It occurs automatically without conscious effort.
• What happens to the ability to accommodate as we age?


  Our lenses lose their ability to accommodate, leading to presbyopia.
• What is the role of the cornea in vision?


  The cornea refracts light rays as they enter the eye.
• What occurs when the ciliary muscle contracts?


  It relaxes the suspensory ligaments, allowing the lens to become more curved.
• What is the pupil's function in the eye?


  It controls how much light enters the eye by changing size.
• What is the sclera?


  The white part of the eye that forms the tough outer coat of the eyeball.
• What is the cornea's structure?


  The transparent outer layer of the eyeball.
• What is the retina's function?


  It converts light into electrical signals to the brain.
• Where is the lens located in the eye?


  Behind the pupil.
• What connects the ciliary muscles to the lens?


  The suspensory ligament.
• What is the process of accommodation in the eyes?


  • Adjustment of lens shape to focus images
  • Allows clear vision for both distant and nearby objects
• What are ciliary muscles responsible for?


  Changing the shape of the lens.