Section F: Opthalmic Lenses Flashcards
1
Q
how to find position of DOLC
A
L'c = (L'1+L'2) / 2 l'c = n/L'c
2
Q
How to find position of lenses
A
ray trace
3
Q
Which lens is horizontal and vertical
A
180 = horizontal 90 = vertical
4
Q
Which lens is f1 and f2
A
f1 is the strongest power
5
Q
what to do when added lens
A
the distance of that new lens become a -l
6
Q
what does ‘give details mean’
A
state position, size and orientation
