STATISTICS. iLASIK – January 2014 to Present PRK – January 2014 to Present.

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Presentation transcript:

STATISTICS

iLASIK – January 2014 to Present

PRK – January 2014 to Present

iLASIK UCVA at 3 months

iLASIK UCVA at 12 months

PRK UCVA at 3 months

PRK UCVA at 12 months

Global Comparison (iLASIK, 3 months post-op) Results ParameterUserReferenceRed/Green = Significantly worse/better outcomeSignificance UDVA mean ± SD in LogMAR+0.01 ± ± 0.14U-test p= UDVA ≥ 20/2082 %70.79 %Chi2 p= CDVA gain of ≥ 1 Line13.57 %12.43 %Chi2 p= CDVA loss of ≥ 1 Line2.71 %18.08 %Chi2 p< SE mean ± SD in D (aim=emmetropia)-0.19 ± ± 0.42U-test p= SE within 0.5D of emmetropia86.27 %85.39 %Chi2 p= SE within 1.0D of emmetropia96.95 %96.63 %Chi2 p=0.835 CYL mean ± SD in D (absolute)+0.17 ± ± 0.29U-test p= CYL ≤ 0.5D94.84 %89.33 %Chi2 p=0.0123

Global Comparison (iLASIK, 3 months post-op) For the year 2013, prior to obtaining the iDesign. ParameterUserReferenceRed/Green = Significantly worse/better outcomeSignificance UDVA mean ± SD in LogMAR+0.01 ± ± 0.14U-test p< UDVA ≥ 20/ %82.81 %Chi2 p= CDVA gain of ≥ 1 Line19.03 %18.17 %Chi2 p=0.597 CDVA loss of ≥ 1 Line5.78 %7.47 %Chi2 p= SE mean ± SD in D (aim=emmetropia)-0.06 ± ± 0.41U-test p= SE within 0.5D of emmetropia89.38 %88.01 %Chi2 p= SE within 1.0D of emmetropia98.15 %97.46 %Chi2 p=0.284 CYL mean ± SD in D (absolute)+0.26 ± ± 0.29U-test p= CYL ≤ 0.5D88.55 %90.17 %Chi2 p=0.198

Post-op Assessment Forms These forms serve two purposes They allow us to answer any questions about healing, post- op drop regimes, enhancement suitability, etc. They help us track our statistics, which in turn enables us to make any adjustments necessary for future patients and provide the best possible results to our mutual patients

Retreatment Rates Higher retreatment rates for high myopes (above -6.00) More likely to get undercorrection or regression High myopes are educated that their risk of retreatment is higher than average Since 2006, the overall retreatment rate is 5.28% In 2014 iLASIK retreatment rate was 2.29% PRK retreatment rate was 1.13% (smaller sample size)

RETREATMENTS

RETREATMENTS/ENHANCEMENTS Should be PATIENT DRIVEN! Keep it positive Don’t worry about “the numbers” Consider all factors including the ocular surface!

RETREATMENT OPTIONS: Relift Post LASIK Repeat PRK PRK on the LASIK flap Poor RSB Time since original LASIK Surgery

Retreatment Protocol Post LASIK: Typically 6m (ensuring STABILITY) Relift within 2 years (can vary with surgeon) Post PRK: AT LEAST 6m post Sx (usually between 6-12m) Stable refraction PRK over PRK

HORIZON LASER VISION CENTER Retreatment Policy: N/C within 2 years of original surgery 2-5 years: $500 per eye 2014 Overall RTMT rate 2% Consistent between LASIK and PRK