Transcript Late results of high hyperopic patients after LASIK

Clinical outcome of thin corneas
after laser in situ keratomileusis
Faik Orucov*, MD, Joseph Frucht-Pery, MD, David
Landau, MD, Eyal Strassman, MD, Abraham
Solomon, MD
*Refractive Surgery Department,
Istanbul Surgery Hospital
Istanbul, Turkey
Hadassah University Hospital,
Jerusalem, Israel
Authors have no financial interests in any of the mentioned products or companies
PURPOSE
To evaluate the clinical outcome of laser
in situ keratomileusis (LASIK) for the
treatment of myopia with thin corneas.
METHODS
SETTING: Hadassah Optimal Laser Center,Jerusalem,
Israel
• Retrospective study
• N: 193 eyes
• Preoperative CCT<498 microns
• Calculated RST ≤ 250 microm
• F/U : at least one year
Exclusion criteria ;
- incomplete documentation
- lost to follow-up
RESULTS
Patient characteristics & Preoperative data
N/%
No of patients
Sex Female (%)
Male
Eye Right (%)
Left
Type of treatment (%)
Conventional
Customized
193/100
113/ 58.5
80/ 41.5
96/ 49.7
97/ 50.3
75/38.9
118/61.1
SE (Mean)
Range
-4.03±1.56
-0.94-8.25 D
BCVA
Range
1.00±0.09
0.50-1.20
CCT
Range
484.83±10.32
455-497 mm
OZ
Range
5.6±0.39 mm
4.50-7.0 mm
Ablation
Range
60.99±15.57
26-96
Residual Stromal bed
Range
264.5±12.85
250-298
Follow up
Range
18.47±10.36
12-72 months
RESULTS
Distribution of preoperative central corneal thickness
CCT
Range
484.83±10.32
455-497 mm
RESULTS
Topographic values & The predictability of the procedures
Scattergram showing achieved versus attempted
correction.
K1
Range
44.88±1.64 D
41.0-49.0 D
K2
Range
43.94±1.82
39.30-47.73
Dk
Range
0.91±0.80
0.0-5.40
I-S Value
Range
0.84±0.33
0.40-1.70
Posterior float
Range
0.032±0.009
0.01-0.060
RESULTS
Postoperative data.
Last visit (~18 months)
UCVA
Range
0.91±0.25
0.20-1.50
SE
Range
-0.27±0.48
-1.88+0.50
BCVA
Range
1.03±0.18
0.60-1.50
Safety index
1.04±0.14
Efficacy index
0.92±0.24
No signs of ectasia
CONCLUSION
LASIK was safe in patients with thin corneas
and myopia.
More studies with longer follow-up are needed
to elucidate further the safety of the LASIK in
thin corneas.