Ideal
refractive surgery procedure
1. pain-free
user friendly, easy
2. surgical simplicity
3. effectiveness UCVA - BSCVA, 20/20, no glasses or contact
lenses
post op UCVA/BCVA can be used as metric
=1 if same
without glasses
<1 if
better acuity after surgery than before
4. accurate and predictable surgery
85% lasik is
within 0.5 diopters, PIOL is 75%
5. safety - loss of 2 or more lines of spectacle corrected
visual acuity
3% lose 2
lines, but only 0.5% with problems
surgical complications
6. costs
7. versatility - for myopia, hyperopia, astig, eventually
aberrant
8. stability
9.
adjustable - lasix enhancements, duress
10. reversability
no long term sequelae