Trial Frame Flashcards
1
Q
What is the purpose of the trial frame reraction?
A
To determine refractive status when phoropter is unavailable
To comfirm/modify phoropter based refraction results
2
Q
What five things are utilized in trial fream refraction?
A
Trial frame Trial lens sets Retinoscopy racks JCC Fixation targets
3
Q
What can you adjut to make it properly fit?
A
Temple length Frame height Leveling Pantoscopic tilt PD
4
Q
Why is temple length adjustment important?
A
To minimize vertex ddistance
5
Q
In which cell is the spherical lens placed?
A
Closest to the patient
6
Q
Why is direct assessment important?
A
To adjust the BVA for room allowance
Final subjective input from the pt
7
Q
What and where is direct assessment?
A
Illustrates the final BVA and various options under natural viewing coditions like out a window or down a long hall
