Static Retinoscopy

Question 1

the objective determination of the pt’s refractive state by locating the far point (PR) of the pt’s eye with the retinoscope and using lenses to move the PR to the examiner’s entrance pupil

Answer 1

retinoscopy

Question 2

what does the clnician examine the light reflecting from

Answer 2

the external limiting membrane of the pt’s retina

Question 3

the purpose of retinoscopy is the objective measurement of the …..

Answer 3

rx the pt needs for distance

Question 4

a flat mirror with a hole in the center, mounted on a handle used w/ an external light source (candle)

Answer 4

spot retinoscope

the earliest

Question 5

pt fixates on a distant target w/ accommodation realxed and the distance rx is determined

Answer 5

static

Question 6

pt fixates on a near target and the status of his accommodation is evaluated

Answer 6

dynamic

Question 7

the point in space conjugate to the pt’s retina when accommodation is relaxed

Answer 7

far point or punctum remotum

Question 8

2 corresopnding and reversible optical locations

Answer 8

conjugate points

Question 9

PR located at infinity

Answer 9

emmetropia

Question 10

PR located “beyond infinity”

Answer 10

hyperopia

Question 11

PR located at a real point in space in front of the pt’s eye

Answer 11

myopia

Question 12

PR is a conoid w/ 2 line foci

Answer 12

astigmatism

Question 13

begins at the bulb of the retinoscope and ends at the external limiting membrane of the pt’s eye

Answer 13

illumination system

Question 14

begins at the pts external limiting membrane and ends at the clinicians retina

Answer 14

observation system

Question 15

sleeve down-divering light

Answer 15

plane mirror

Question 16

parallel light

Answer 16

para-stop

Question 17

converging light that focuses behind the pt

Answer 17

long concave mirror

Question 18

sleeve all the way up-converging light that focuses btwn the clinician and the pt

Answer 18

short concave mirror

Question 19

motion of light on the pt’s fundus i the SAME as the motion of streak on the pts face, but OPPOSITE to the motion S’

Answer 19

plane mirror
para-stop position
long concave mirror position

Question 20

motion of light on the pt’s fundus is the OPPOSITE of the motion of the streak on the pt’s face, and OPPOSITE to the motion of S’

Answer 20

short concave mirror

Question 21

sleeve down
diverging light leaves retinoscope and
light on pts fundus moves in SAME direction as intercept

Answer 21

plane mirror

Question 22

sleeve up
converging light leaves retscope and
light on pts fundus moves in OPPOSITE direction as intercept

Answer 22

short concave mirror

Question 23

what is seen at the plane of the pt’s pupil

Answer 23

the reflex

Question 24

vergence of light rays observed during retinoscopy depends on

Answer 24

1. refractive error
2. status of accommodation
3. lenses we place in front of the pt’s eye
4. sum of these elements dtermines the location of the focal point of the pt’s eye

Question 25

retinoscopy motion depends on

Answer 25

1. lensess 2. accommodation 3. discrepency (ref error)

Question 26

in a plane mirror... 1. w/ motion is: 2. against motion is: 3. neurtrality is:

Answer 26

1. PR not btwn you and pt 2. PR btwn you and pt 3. PR at your entrace pupil

Question 27

In against motion, when the light is moved down, the reflex in the pupil moves....

Answer 27

up

Question 28

in against motion, when the light is moved up, the reflex in the pupil moves....

Answer 28

down

Question 29

in neutrality, PR is at the examiner's _______ reflex fills the pupil but doens't appear to ____ but flashes ____ -_____ reflex -______ view

Answer 29

entrance pupil move, on and off brightest maxwellian

Question 30

in a short concave mirror..... - motions _______ - PR is ___ btwn clinician and pt in against motion - PR is _______ clinician and pt in with motion

Answer 30

- reverse - NOT - between

Question 31

moving to the far point can only be done when the pt is .....

Answer 31

myopic. and the PR is a real point

Question 32

moving to the far point works best if the PR is ...

Answer 32

20 cm to 150 cm from pt's eye (1.5 to 5D of mypia)

Question 33

neutrality occurs when the sum of the pts ______, ______, and the lenses places the pts _______ at our entrance pupil

Answer 33

refractive error accommodatoin far point

Question 34

minus lens added to the gross to diverge the light and move the PR from your entrance pupil to infinity

Answer 34

working distance (D)

Question 35

gross plus working distance

Answer 35

net retinoscopy

Question 36

what is the lens that makes the pts fundus conjugate to infinity

Answer 36

net retinoscopy

Question 37

in SLEEVE DOWN: w/ motion: PR ________ you and pt against motion: PR _______ you and pt neutrality: PR _________ your entrance pupil

Answer 37

- NOT between - between - at

Question 38

motion observed depends on (3 things)

Answer 38

1. location of the PR of the pts eye 2. positoin of the sleeve of the retscope 3. how far you are from the pt

Question 39

What does the streak test on astigmatic eye

Answer 39

the meridian of the eye perpendicular to the long axis of the streak

Question 40

the direction of motion of the streak is always _______ to the meridian being tested

Answer 40

parallel