Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Procedures > Retinoscopy > Flashcards

Retinoscopy Flashcards

1
Q

Static retinoscopy

A

Objective evaluation of the refractive status of a patient

Performed with accommodation at rest

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

2 main parts of retinoscope

A

Illumination system

Observation system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Components of illumination system

A 
Energy source 
light source 
Condensing lens 
Mirror 
Focusing sleeve
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Components of observation system

A

Front peephole
Aperture hole
Back peephole

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Hyperopia

A

Far point behind retina

Not enough plus power or too short of eye

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Myopia

A

far point in front of retina

Too much plus power or too long of eye

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

With motion

A

Hyperopia, need more plus power

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Against motion

A

Myopia, need more minus power

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Working distance

A

66.7cm

.12D for 5cm error

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Speed

A

Slowest furthest from far point

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Brightness

A

Dimmest farthest from far point

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Width

A

Narrowest farthest from far point

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Bracketing

A

Determining neutrality as halfway between the zone where with motion was last detected and the zone where against motion begins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Gross retinoscopy finding

A

Result of the lens power needed to find neutrality scoping from working distance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Net retinoscopy finding

A

Gross retinoscopic finding with the working distance mathematically accounted for
Subtracting 1.5D or 6 clicks of phoropter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Regular astigmatism

A

Principal meridians are 90 degrees apart

17
Q

Irregular astigmatism

A

Principal meridians do not exist and are not 90 degrees apart

18
Q

Symmetric astigmatism

A

Sum of the minus cylinder axes are 180 degrees

19
Q

Break

A

When the streak and reflex are not parallel

Most useful for greater than 1D of astigmatism

20
Q

Width astigmatism

A

Narrowest when streak is aligned with one meridian and widest with the other

21
Q

Skew

A

Disappears when moving on meridian

Refines meridian in small cylinders

22
Q

More with

A

Slowest, dullest, thinnest

Procedures (16 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions