DISP - Trifocals and Matrix Optics - Week 6 Flashcards
1
Q
What do trifocals do to the range of clear vision?
A
It is expanded
2
Q
How are trifocals fitted?
A
1mm below the lower edge of the pupil.
3
Q
On a 2x2 matrix, where is the horizontal and vertical power component found?
A
Top left value is horizontal power component
Bottom right is the vertical power component
