eye

Question 1

Accommodation reflex;
how does the eye focus nearer objects into view?

Answer 1

Focusing near objects requires greater refraction of light: Eye accommodates:

• *-Pupil constrict** limits amount of light coming through
• *-Eyes converge** to ensure image remains focused on same point of retina in both eyes
• *-Lens becomes more biconvex (fatter)** by contraction of ciliary muscle

Lens become stiffer with age

presbyopia