14. 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
15. 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