Chapter 8

Question 1

Retina

Answer 1

Light sensitive tissue

Question 2

Rods

Answer 2

Colorless night vision

L. In periphery

Question 3

Cones

Answer 3

Color vision

L. In macula

Question 4

Eyes change shape when ___— contracts

Answer 4

Ciliary muscle

Question 5

Accommodation

Answer 5

Allows clear retinal image maintained in presence of changing light

Question 6

Visual acuity

Answer 6

Degree of detail seen

Question 7

Static visual acuity

Answer 7

Both target and performer stationary

Improvement first 4-5 yrs

Question 8

Dynamic visual acuity

Answer 8

Detail in moving objs

Question 9

Dynamic v efficiency decreases as

Answer 9

Obj increases in speed

Question 10

ARED

Answer 10

Age-related macular degeneration glaucoma
Cataracts
Diabetic retinopathy

Question 11

AMD

Answer 11

Loss of visual acuity
Dry- Breakdown of light sensitive cells in macula
Wet- new blood vessels grow and leak

Question 12

Glaucoma

Answer 12

Pressure from fluid being plugged

Optic nerve can be affected

Question 13

Cataracts

Answer 13

Clouding of eyes lens

Question 14

Diabetic retinopathy

Answer 14

Hemorrhage of b vessels

Question 15

Presbyopia

Answer 15

Inability to focus on close up

Question 16

Strabismus

Answer 16

Misaligned eyes

1st yr of birth

Question 17

Binocular vision

Answer 17

Fuses two images together judge depth

Question 18

Depth perception mature by

Answer 18

6 yrs

Question 19

prehension

Answer 19

grasp and sieze obj in hand

Question 20

tracking

Answer 20

gain important information regarding object’s flight

Question 21

age to effectively track

Answer 21

6-5 yrs.; 8-9 if ball travels in an arc

Question 22

coincedence-anticipation

Answer 22

object interception- influenced by practice

Question 23

macula

Answer 23

region where cones are located

Question 24

hyperopic

Answer 24

light entering eye focuses behind retina- infants