6 Binocular Subjective Refraction-attar

Question 1

What are three advantages to binocular refraction compared to monocular?

Answer 1

Testing conditions are more realistic.. closer to habitual state

Accommodation, convergence and light adaptation are held more constant

Greater control of accommodation

Question 2

Which type of refraction is much more commonly preformed?

Answer 2

Monocular subjective refraction

Question 3

What binocular refraction technique has the target partially occluded such that only part of it is visible to the right eye and only pray visible to the left eye?

Answer 3

Partial occlusion

Question 4

What technique of bino refraction uses plus lenses over the eye NOT being examined?

Answer 4

Blur

Question 5

What bino refractive technique uses polarized targets or filters such that only part of the target visible to the right eye and only part visible to the left eye?

Answer 5

Vectographic techniques

Question 6

What specific technique is used in bino refraction for partial occlusion?

Answer 6

Turbine infinity balance

Question 7

What is it called when you view an acuity chart under partial occlusion or vectographic conditions and the portions seen by both eyes ensure bino fusion necessary?

Answer 7

Fusion locks

Question 8

Techniques like cyclodamia, psychological septum, and Humphriss Immediate contrast test are under what bino refraction technique?

Answer 8

BLUR

BLUR BLUR..BLUR BLUR

Question 9

What’s a bino refraction technique that uses Grolman’s Vectographic Slide?

Answer 9

Vectographic

Question 10

What are three conditions for which binocular subjective refraction may be advantageous??

Answer 10

Refractive conditions

Unequal maximal acuity (amblyopia etc)

Ocular Motility conditions