4.1.3 Matches the form, type and positioning of lenses to meet all the patients needs and requirements and provides appropriate advise Flashcards
(APR, CS – basically any existing spx wearer) Indicators: Provides all the necessary information for a pair of spex to be duplicated, to include: prescription, lens type and form, centration and fitting positions, frame details, lens surface treatments Patient encounter: Px dispensed where information from the old spex was required
1
Q
Prism
A
P = prism
C = decentration (cm)
F = power (D)
P=CF
2
Q
Prism tolerance (British standards)
A
- 1^ vertical
- Generally 1.5-2.5^
- Distance vision - up to 10^ base out, 4^ base in
- Near vision – up to 7^ base out, 7^ base in
3
Q
A
