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Methods Records of 396 LASIK procedures from 199 patients at Inouye Eye Hospital between 11/06 and 06/07 were reviewed. Tx: VISX S4IR 79 males and 120 females Age range: 20 to 57 (33.6 8.4) Pre-op spherical equivalent range: to D (-5.38 2.02) Records of 396 LASIK procedures from 199 patients at Inouye Eye Hospital between 11/06 and 06/07 were reviewed. Tx: VISX S4IR 79 males and 120 females Age range: 20 to 57 (33.6 8.4) Pre-op spherical equivalent range: to D (-5.38 2.02)
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Comparison of Patient Profiles: Comparison of Patient Profiles: Wavefront-Guided LASIK Wavefront-Guided LASIK
Versus Versus Conventional LASIKConventional LASIK
Michiho Suzuki-Judge, MDInouye Eye Hospital
Tokyo, Japan
Purpose To document profiles of patients
who selected either wavefront-guided LASIK
or conventional LASIK.
Methods Records of 396 LASIK procedures from 1
99 patients at Inouye Eye Hospital between 11/06 and 06/07 were reviewed.
Tx: VISX S4IR 79 males and 120 females Age range: 20 to 57 (33.68.4) Pre-op spherical equivalent range: -0.88 t
o -12.88D (-5.382.02)
Methods All patients were informed of pros, cons an
d price differences between the procedures and made their own decisions.
Wavefront-guided Conventional
Pros Less HOALess night glare
Less tissue ablation
Cons More tissue ablation More HOAMore night glare
Price 300,000JPY for both eyes (3,000 USD)
200,000JPY for both eyes (2,000 USD)
Methods Patient data was categorized by age,
sex, occupation and pre-op refraction for comparative analysis.
X2, ANOVA and T-test analyses were applied to the data.
Results (Wavefront-guided / Conventional) (male : female ratio)
WFGConventional
251 cases125 patients(63.4%)
145 cases74 patients(36.6%)
Male40%Female
60%
Male39%Female
61%
Conventional
WFG
Results (age) Statistical differences found for all age groups under 40
0
10
20
30
40
50
60
number of patients
20-24 25-29 30-34 35-39 40-44 45-49 50-54 55-59
age ConventionalWFG
62%
30%
31%28%
48%38%
57%50%
38%
70%69%
72%52%
42%
Conventional: mean 33.47.7 (20~57)
WFG: mean 33.99.6 (20~56)
Results (occupation)
0
20
40
60
80
100
120
number of patients
Corp Empl...Housewife
Student
Self EmployedGovernmentHealthcareUnemployed
Other ConventionalWFG
31%
50%64%
69%
50% 36%
% shown only for X2 values tested as significantly different
Results (pre-op spherical equivalent)
(D)
0
40
80
120
160
200
number of eyes
0~-3 -3~-6 -6~-9 -9~
pre-op spherical equivalentConventionalWFG
26%
27%
48%
94%74%
73%
52%
Conclusions At our hospital in Tokyo, wavefront-
guided to conventional LASIK ratio was 63.6 to 36.4.
Average age and sex were not determinant factors in patients’ decisions for level of LASIK treatment.
Patients in their late 20s and 30s chose wavefront-guided LASIK more than conventional LASIK.
Conclusions Patients in their early 20s chose conventi
onal LASIK more often. Housewives and students (dependants) c
hose conventional LASIK more often. High myopia patients chose conventional
LASIK because they were made aware of concerns for opportunities of enhancement if needed.
Thank you for your interest!