Keystone Telebinocular Visual skills Flashcards Preview

PPO2 > Keystone Telebinocular Visual skills > Flashcards

Flashcards in Keystone Telebinocular Visual skills Deck (13):
1

what does the keystone telebinocular visual skills machine do

series of cards that screen for visual skills function - used as pretesting for acuity, binocular and color vision defects

2

what are the lenses in the brewster stereoscope/septum

+5D lenses that are 95mm apart

3

what is on the simultaneous perception card

a dog and pig

4

how are vertical phorias tested

horizontal yellow line and red symbols - ask patient where the yellow line is going through the red symbols

5

how is fusion at distance tested

2 white dots with black lines in center and a red and blue dot (3 dots= fusion, 4= over/under convergence)

6

How are lateral phorias tested

with modified throrington: arrow and numbers (tests phoria and stability) -> record the first number they see with the arrow

7

how is visual acuity in the distance tested

monocular VA in a binocular field

8

what does the patient have if they have improvement in VA if one eye is occluded

suppression under binocular conditions

9

what can #10 on the VA indicate if answered correctly

hyperopia (20/15)

10

what VA do you record

the last correct response before 2 successive failures

11

how many sec of arc does row 1 have

1.103

12

how many sec of arc does row 12 have

82.5

13

what do you do after the patient finishes the color card for distance

move the card holder to test lateral phoria and fusion at near