Normal AC/A Conditions

basic exophoria

normal AC/A & exophoria at distance

fusional vergence dysfunction

normal AC/A & orthophoria at distance

basic esophoria

normal AC/A & esophoria at distance

1. normal

2. normal

3. reduced BI & BO at distance & near

4. normal

5. low, difficulty w/ BI & BO

6. low

7. low

8. low binocular, difficulty w/ plus & minus lenses

9. normal

10. normal

describe the trend of results for the following tests for a patient with fusional vergence dysfunction:

1. distance phoric posture

2. near phoric posture

3. vergence range testing

4. AC/A

5. vergence facility

6. NRA

7. PRA

8. accommodative facility

9. MEM/Nott/BCC

10. NPA

low

patients with fusional vergence dysfunction typically have _______ refractive error

VT

what is the primary treatment for fusional vergence dysfunction?

intermittent central

what type of suppression do fusional vergence dysfunction patients sometimes have?

1. eso

2. eso

3. normal

4. low BI at distance & near

5. low, difficulty w/ BI

6. low

7. low binocular, difficulty w/ minus

8. high (if using accommodation to compensate)

9. low binocular

describe the trend of results for the following tests for a patient with basic esophoria:

1. distance phoric posture

2. near phoric posture

3. AC/A

4. vergence ranges

5. vergence facility

6. PRA

7. accommodative facility

8. MEM/BCC/Nott

9. NPA

1:1 & percivals, distance & near

a basic esophoric patient will fail what criteria & at what distances?

plus

for a basic eso patient, emphasize ______ on the distance Rx

1. horizontal BO prism at distance & near

2. VT

3. plus lenses

what are the treatment options for a basic eso patient in order?

1. exo

2. exo

3. low BO at distance & near

4. low, difficulty w/ BO

5. low

6. low

7. low, difficulty w/ plus lenses

8. low binocular

9. low

describe the trend of results for the following tests for a patient with basic exophoria:

1. distance phoric posture

2. near phoric posture

3. vergence range testing

4. vergence facility

5. NPC

6. NRA

7. accommodative facility

8. NPA

9. MEM/Nott/BCC

9^

for a basic exo patient, if the distance deviation is >6^, then the near can be w/in _____ of the distance

3^

for a basic exo patient, if the distance deviation is <5^, then the near can be w/in _____ of the distance

Sheard’s & Percival’s, distance & near

a basic exo fails what criteria & at what distances?

1. VT

2. horizontal BI

what are the treatment options for a basic exo in order?

1. suppression VT

2. sensory motor fusion

3. emphasize PFV emplitude

what is the focus of VT for a basic exo patient in order?