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Y.Domniz ,Y. Suhodrev, M. Visokovsky,
A. Gayer, G.Munzer
CARE VISION ISRAEL
THE LAST DECADE
COMEBACK TO
SURFACE
ABLATION



MANUAL:7-9 mm with hokey knife
ALC:7-9 mm with 20% alcohol, 15"
40”,mm oz 50mi PTKPTRK:6-6.5
MANUALALCOHOLPTRKALL
124120130374
4+-22.74+-234.2+-244.1+-23
51.3/48.744/5651.6/48.449/51
-4.8+-2-4+-1.7-3.9+-1.5-4.23+-1.7
40+-53047+-53340+-52743+-530
5.7+-1.6ALL
6.3+-1.2MANUAL
5.8+-2ALCOHOL
5.1+-2PTRK
UCVA
LOW
(<0.60)
FAIR
(0.70-0.80)
EXCELLENT
( >0.9)
ALL14%26%60%
ALC11.8%35.6%52.6%
MAN29%39.3%31.6%
PTRK3%6%91%
EFFICACY INDEX
UCVA POST/BCVA PRE
SE
0.85+-0.19+0.06+-0.65ALL
0.74+-0.22+0.18+-0.7MANUAL
0.84+-0.17-0.44+-0.7ALCOHOL
0.96+-0.1-0.79+-0.5PTRK
EFFICACY INDEX (EI) AT ONE MONTH
0.74
0.84
0.96
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
MANUALALCOHOLPTRK
PRK METHOD
V.A
V.A UCVA POST-OP
V.A BCVA PRE-OP
 MANUAL
 ALCOHOL
 PTRK
 ALL
5/124 4%
8/120 6.6%
13/130 10%
26/374 6.9%
6.9%26ALL #
4%5MANUAL
6.6%8ALCOHOL
10%13PTRK
None Mild Moderate Severe
PTRK ALC
2.61.7
CONCLUSION# OF EYESPLATFORMSTUDY
PTRK faster epit. heal
1m better vis. outcome
trends undercorrec.
374
WEAVELIGHT
ALLEGRETO 200
LAVI-STORCH
2011
PTRK safe &
effective, trends
overcorr.
46
SUMMIT
UV 200
*GIMBEL
1995
PTRK faster
epit.heal
trends overcorrec.
300VISX Star S3
** Lee
2005
(Manual superior
to PTRK) not
stat. sig.
278SUMMIT
CLINCH
1999
T
PROS
 Safe, the real “no touch”
procedure
 Easy to standardize
 Small ,uniform well
centered area of epithelial
removal
 Faster epithelial healing
 Avoidance of mechanical
and chemical trauma
 Decreased apoptosis,
corneal repair& late
haze?(Helena IOVS 1998)
CONS
 Prolonged laser exp.,
>early haze , mirror&
gas overuse
 Trends to over/under
correction(varia.epi.thick.)
 Predictability varies
with laser platform
Buzzonetti
THE IDEAL
REFRACTIVE
PROCEDURE
?
?
P
T
R
K
P
T
R
K

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