Pres SCL Flashcards
more soft MF lenses provide (alternating/simultaneous) vision
simultaneous - b/c they stay centered
are segmented SCLs common? What’s an example of a segmented SCL lens?
-do you increase or decrease the LD to make the lens position more superiorly and raise the seg ht?
NO - don’t translate enough (t work well
-INCREASE the LD; decreasing it will drop the seg and position it inferiorly
do SOFT aspherics have near or distance in the center? (hint: remember what aspheric GPs have)
-are soft aspherics pupil-size dependent?
NEAR - b/c GPs have dist in the center.
MF SCLs have near in center, more dist as you go toward peri
-YES. pupil size dependent
most aspheric SCLs only have one add power available, though there are exceptions:
- which has THREE adds available?
- which has TWO adds available?
THREE: air optix (Low, Med, High)
TWO: PureVision (Low -up to +1.50, High -up to +2.50)
which soft MF lens provides “balanced progressive technology”, and has a SINGLE add option?
Proclear 1-day MF
What’s the only SiHy, DAILY disposable SCL MF?
Clariti - has 2 adds available
Aspheric soft FIT:
- want to maximize ___ @ D, ___ @ N
- perform (mono/binoc) VA and OR
- to increase DIST VA - what do you do?
- to increase NEAR VA - what do you do?
- room illum?
max (+) @ D, max (-) @ N
- BINOCULAR VA/OR
- increase DIST: LOWER ADD (DON’T over-minus - will remove plus power from near as well if you do)
- increase NEAR: bump up add of near eye (like modified mono)
- MODERATE room illum
Concentric Soft Lenses
- which lens (two-zone or multi-zone) is better at reducing glare, shadows and ghost images?
- what is SUPER-important for the success of this lens?
multi-zone; CENTRATION is vital
Coopervision Biofinity, Proclear, and Frequency 55 MFs all have what unique design?
D and N lens design
Which MF lens offers “stereo precision technology” to both: 1) balance all distances, and UNIQUELY TO 2) minimize glare, ghosts, halos?
AV Oasys for presbyopia - NOT DEPENDENT ON ILLUMINATION
which fitting style is a good go-to when the patient has failed to adapt to BOTH: monoVA and MF?
modified mono! - enhance either dist or near more than you did in mono
-NO SET PROCEDURE - yolo.
what is the most PREFERRED option for SOFT (and GP too, actually) presbyopic lens fitting style?
MULTIFOCAL - preferred (68%) over monovision
aspheric and multi-zone concentric SCLs are preferred for (low/high) adds because they provide LESS d____, LESS g___/shadows, and PROGRESSIVE/continuous vision
LOW adds
less distortion, less ghosting, progressive vision
GPs and aspheric/concentric/segmented SCLs are preferred for (LOW/HIGH) adds
HIGH adds - translation available, crisper vision in each zone of the lens
Have a good fit set for EACH of the following 4 designs:
1) soft a____
2) soft m____zone concentric
3) GP a____
4) GP t_____
soft aspheric, soft multi-zone concentric, GP aspheric, GP translating