Explain accommodation in the human eye for distant and near vision.

For Distant Vision (objects further than 6 m):

• The ciliary muscles relax.
• The suspensory ligaments tighten (become taut).
• The tension on the lens increases.
• The lens becomes less convex (flatter).
• Light rays are refracted less.
• Light rays are focused onto the retina.

For Near Vision (objects closer than 6 m):

• The ciliary muscles contract.
• The suspensory ligaments slacken.
• The tension on the lens decreases.
• The lens becomes more convex (more rounded).
• Light rays are refracted more.
• Light rays are focused onto the retina.