Moore Test Qs Flashcards
What is the interval of sturm
- space between the sphere and splinter power
- when you refine the power of astigmatism, you are closing the interval of sturm
The split prism binocular balance technique you initially learned is called what?
Von Graefe
The second balance technique you learned which incorporate the R/G filters is called what?
R/G Von Graefe
Minimum amplitude of accommodation
15.0D-0.25(age)
Mean amplitude of accommodation
18.5D-0.30(age)
Maximum accommodation amplitude
25.0-0.40(age)
Assymetry in amplitude of accommodation
Further testing would be indicated for any patient with asymmetrical amplitude of accommodation, further testing is needed if nothing in history or refraction gives suggestions
Objective data
Requires no input from the patient
- retinoscopy
- lensometry
- autorefract
Subjective data
Patient input
-manifest
FOG
Start at 20/40
Blur vision with plus lenses. Doesn’t have to be 6 clicks, whatever it takes to blur them. Walk them down until they just see it
CAP
Axis
-straddle the axis. Follow red (for minus cyl) and follow white (for plus cyl)
Power
- put Power on JCC and ask 1 or 2
Refine
Walk down to 20/20
3 click blur out
Do other eye
Balance
Balance with both
Can’t do it with amblyopia
When a patient bounces around two powers during power refinement, what should you do
Use the least minute
If you want to double check your objective or subjective refractive findings (especially if the patient cannot see 20/20) what would you do FIRST
Pinhole
Don’t document refraction until you get the right one. If you pinhole 20/20 and need to redo it, don’t enter wrong data. Only document if you cannot get to 20/20 due to pathology that pinhole didnt rule out
How many clicks to blur out 20/25
4 clicks
How many clicks to blur out 20/30
5
How many clicks to blur out 20/50
7
How many clicks to blur out 20/40
6
In the steps of a manifest refraction, which of the following is not included?
- Binocular refraction
- Relaxing the accommodation
- Cylinder axis and power refinement
- Binocular balance
Binocular refraction
-do this for fusion lock, do when axis is going crazy
If you have no cylinder or axis power when you do your manifest refraction. What would you do differently than FOG
CAP
REFINE
BALANCE
CAP is CPAP
Do a power search every 15 degrees
Define the interval of sturm
Horizontal and meridian axis—space between them!
Difference between sphere and cylinder power, bringing them closer and closer together during refraction
-3.00 -2.00 090
-5.00 @180
-3.00 @090
Difference of 2.00 is interval of sturm
When doing a R/G test what patietns should you avoid
Color blind
Amblyopia
Cataracts
AMD
Any pathology really
Give some reasons for doing a binocular refraction instead of monocular refraction
- nystagmus
- anisometropia (different powers in eyes)
- non suppressing tropia (usually intermittent)
