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!