accommodation

Question 1

Define the term accommodation

Answer 1

changing the lens shape (more spherical) in order to focus on a nearby object

Question 2

how is accommodation accomplished with the anatomical structures in the eye.

Question 3

If the ciliary muscles constrict what happens/relax what happens to lens?

Answer 3

If the ciliary muscle constricts then the lens will thicken/round up

If the ciliary muscle relaxes, then the lens will thin/flatten

Question 4

What is presbyopia, emmetropia and astigmatism?

Answer 4

Presbyopia – the near point of vision
Emmetropia – normal vision
Astigmatism – causes unequal focusing and blurred images

Question 5

Define myopia and hyperopia. What can cause myopia or hyperopia?

Answer 5

myopia– Nearsightedness. Having trouble seeing faraway objects. The cause of this a long eyeball

Hyperopia – farsightedness. Have trouble seeing close-up objects. The cause of this is a short eyeball