Ch14 Flashcards
What are the 5 variables for graphical analysis plot ( Hofsetter)?
Distance phoria Near phoria Positive FV Negative FV Amplitude of accomodation
What amount of distance phorias are good between exo and eso?
exo of less than ~3 is fine but an eso up to 3 is bad.
Why is eso more problematic than exo?
you cannot train the eye to straighten for eso, but you can always train the eye to look inwards with an exo.
What is the OEP expected finding of distance lateral phoria?
ortho -0.5 exo
noone really has an ortho and the 0.5 exo is measured through bracketing because prisms normally only come in 1D
What is the OEP expected finding of a near lateral phoria?
6.0 exo
What is the OEP expected finding of a BO distance ?
blur: 7
break: 19
recover: 10
what is the OEP expected finding of a BI distance?
break: 9
recovery: 5
What is the OEP expected finding of BO at near?
blur: 15
break: 21
recovery: 15
What is the OEP expected finding of BI at near?
blur: 14
break: 22
recovery: 18
What is the OEP expected findings of NRA?
+2.00
What is the OEP expected findings of PRA ?
-2.25