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51 Cards in this Set

  • Front
  • Back
Adding Lens Power (+ or -) works better with high or low AC/A
High
LAGS behind
Can't accommodate
Can't clear (-)
Can't RELAX
Accommodative Insufficiency
Benefit from near (+)
Accommodative Insufficiency
Accommodative Infacility (NRA normal)
Convergence Excess
Basic Eso
Near (+) benefits Accommodative Infacility even when NRA abnormal
FALSE
In BCC need to add +3.00 to the +/-0.50 lenses and the _________ line should be darker. Then add __________ until opposite or same.
vertical
(-)
MEM effective with high _________
LAG
Eso deviation at near trial plus until normalized up to ___________
+2.50 to +2.75
can use different (+) with CT until see ortho for____________
Convergence Excess
For children fit flat top at ____________
lower pupil margin
For children fit PAL
2-4 mm above center pupil so don't look over it.
compensates by dipping chin!
(+) lenses can control eso at near and distance?
T or F
False!!
Blur at distance
Great fix for near
Benefits with additional (-)
High AC/A exo
divergence excess
basic exo
LOOK at AGE and ACCOMM STAT
Prescribing over (-) is good for age below __________ but not over ___________
6
9
RX of over minus usually in the range of __________
-1.00 to -2.50
To check if patient can accommodate appropriately through minus use __________
MEM
If a child is over age 9 and you would like to over minus patient consider ____________ to help relieve the demand at near.
An ADD
Consider added (+) for patients with
convergence excess
basic esophoria
accommodative insufficiency
ill sustained accommodation
Consider added (-) for patients with
high exophoria
divergence excess
Prisms can be prescribed for
heterophoria or strabismus
sudden onset strab
Prisms are prescribed to dcrease
vergence demand
Typically prisms are RX for ___________ patients with ___AC/A
heterophoric
low to normal
Prism amount that is equal to the angel of the deviation in which residual CD is 0
Compensating Prism
Prism amount that is less than the angle of the deviation with residual CD
Relieving Prism
Scenarios that prism is prescribed
(1)horiz relieving
(2)vert relieving
(3)replace vision therapy for patients who are resistant to therapy
(4)conj. with vision therapy
Horiz relieving prism effective for _________ but not ____________
divergence insufficiency ESO
high basci ESO
NOT effective EXO
For CI prism is a good option.
T or F
FALSE
Sheard's supposedly works more effectively with
Exophores
Percival's supposedly works more effectively with
Esophores
Patients with and area of flatter slope on FD curve RX prism that _______________
moves the vergence demand to flatter portion of slope
Patients with FD curve with steeper slopes RX prism that _____________
eliminates the FD (associated phoria)
Type I curve with symptoms and a curve with flat slope.
RX prism to
move the flattest portion of slope to y-axis
Type I curve with symptoms and a curve with a steep slope. RX prism to
(to 0 y axis) associated phoria
Type II slopes are typically ____________ so they respond __________ to prism
eso
well
For Type II slope RX _________prism to move the vergence demand to flatter portin of curve
BO
On "Type" slopes the x axis is labeled from left to right ___________ and the y axis is labeled from top to bottom
BI BO
Eso FD
Exo FD
__________ never give prism but responds well to therapy
EXO
Type III curve typically _______ patients
Exo
RX _______prism to shift flattest portion of curve to y-axis
BI
teacher- NO prism for EXO
Type____________ is unstable vergence and accommodative system
IV
small amounts of ___________can have serious conseq. on lateral vergence sys
vertical phoria of FD
When vertical phoria is present consider_____________ prism before____________prism
vertial
lateral
The amount of vertical relieving prism is ________________
vertical associated phoria
Vertical associated phoria may be done by
(1) vertical FD curve
(2) FD card introducing vert prism until eliminated
(3) trial of vert prism
In finding vertical relieving prism always start with ___________ that amount found on CT
LESS or MORE?
Less
b/c want to alleviate NOT compensate
Vertical relieving prism can ve found using the ______card
Wesson
Prism can be RX'd temporarily by use of ____________ to reevaluate before final RX
Fresnel prisms
Retinal disparity due to prism intro stimulates _____________ after awhile of sitting patient can _____________ with slow fusional vergence .
fast fusional vergence sys
prism adapt and ready for the next intro of stimulation
RESULT: EAT PRISM; slow fusional verg. sys. maintains eye position
Occlusion should never be prescribed for ____________
XT suppressing
Vision Therapy is systematic re-training of
accomodative sys
vergence sys
ocular motor sys
Diagnosis of a VT problem with minimal symptoms can be related to
suppression
avoidance
Correct sequential management approach of VT
(1) optical correction of ametropia
(2) added lens power
(3) prism
(4) occlusion
(5) vt
(6) surgery