RGP Flashcards
STATIC FITTING ASSESSMENT TECHNIQUES
CENTRAL ZONE
MP ZONE
PERIPHERAL ZONE
CONTACT/CLEARANCE
HORIZONTAL AND VERTICAL MERIDIANS
STATIC FITTING ASSESSMENT CENTRAL
POOLING-STEEP
ALIGNMENT
TOUCH-FLAT
WIDTH OF POOLING OR TOUCH ZONE
STATIC FITTING ASSESMENT MP
CONTACT - LIGHT, MEDIUM, HEAVY
ALIGNMENT
FLUORESCEIN BAND
RESPONSE CRITERIA
RGP LENSES SHOULD PROVIDE
GOOD VA
COMFORT
NO OCULAR INSULT
NORMAL FACIAL APPEARANCE (POSTURE)
STATIC FITTING: OPTIMA;
MINIMAL CENTRAL CLEARANCE
LIGHT MP CONTACT ZONE
OPTIMAL EDGE WIDTH
AVERAGE EDGE CLEARANCE
OPTIMAL FITING: DYNAMIC
CENTERED (+/- 0.5mm)
STABLE
SUPERIOR LID COVERAGE
MOVEMENT 0 SMOOTH, VERTICAL, AVE SPED, 1-2MM
STATIC FIT: TIGHT
EXCESSIVE CENTRAL CLEARANCE
HEAVY MP CONTACT ZONE
NARROW EDGE WIDTH
REDUCED EDGE CLEARANCE
DYNAMIC FIT: TIGHT
CENTRED
STABLE
SUPERIOR LID COVERAGE
MOVEMENT: ROCKY/SMOOTH, VERTICAL, FAST SPEED, <1 MM
STATIC FIT: LOOSE
DECENTRED
HIGH/LOW RIDING
UNSTABLE
DYNAMIC FIT: LOOSE
APICAL ROTATION
LID ATTACHEMENT
VARIABLE SPEED
>2.0 MM
STATIC FITTING ASSESSMENT TECHNIQUEQ
CENTRAL ZONE
MP Z
PERIPHERAL Z
CONTACT/CLEARANCE
HORIZONTAL AND VERTICAL MERIDIANS
ESSENTIAL IN RGP FITTING
WHAT?
INSTRUMENT
DEVICE
OTHERS
ESSENTIAL IN RGP FITTING
WHO?
PX SELECTION:
MOTIVATION AND EXPECTATION
OPTICAL CONSIDERATION
GENERAL HEAKTH
OCULAR HEALTH
CL HX
ESSENTIAL IN RGP FITTING
WHY?
CRITICAL VISION NEED (HIGH EOR)
SIGNIFICANT ASTIGMATIC CORRECTION
SOFT LENS FAILURE
IRREGULAR CORNEA
SLOW DOWN MYOPIC PROGRESSION
ESSENTIAL IN RGP FITTING
HOW?
OCULAR MEASUREMENTS:
HVID
PALPEBRAL FISSURE SIZE
PUPIL SIZE
K READING
LID AND CORNEA
SPECTACLE REFRACTION
