Table 4 Summary of previous studies on non-toric and toric intraocular lens implantation for keratoconus.

From: Predictability of Intraocular Lens Power Calculation for Cataract with Keratoconus: A Multicenter Study

Author

Number of eyes

Age (years)

Follow-up (months)

IOL type

IOL calculation formula

Keratometry

UDVA

CDVA

Spherical equivalent

Astigmatism

within ± 0.5 D(%)

within ± 1.0 D(%)

Leccisotti et al.1

34

56.7 ± 10.4

17.4 ± 5.1

non-toric

Holladay 2

topography

0.48 ± 0.25 (decimal)

0.76 ± 0.23 (decimal)

−1.31 ± 1.08

1.22 ± 1.37

9

47

Thebpatiphat et al.2

12

55.3 ± 11.8

3

non-toric

SRKI, SRKII, SRK-T

keratometer topography

0.63 ± 0.47

0.21 ± 0.13

−1.44 ± 1.69 (mild), −5.85 ± 3.94 (moderate)

N.A.

N.A.

N.A.

Watson et al.3

91

59

33

non-toric

SRK-T

keratometer

N.A.

0.3 (mild) 0.2 (moderate) 0.2 (severe)

−1.0 (mild)-1.5 (moderate) −5.4 (severe)

N.A.

N.A.

60 (mild) 41.9 (moderate) N.A. (severe)

Navas et al.4

2

55, 46

12

toric

SRKII

topography

20/25

N.A.

−0.5, 0

0.5

N.A.

N.A.

Visser et al.5

3

78, 64, 64

6

toric

SRK-T

keratometer

20/50, 20/130, 20/30

20/30, 20/40, 20/25

−0.75, −3.25, −0.63

1.5, 1.5, 0.75

N.A.

N.A.

Jaimes et al.6

19

48.2 ± 6.6

7.9 ± 6.6

toric

SRKII

topography

0.29 ± 0.23

0.11 ± 0.12

−0.46 ± 1.12

1.36 ± 1.17

38

85

Nanavaty et al.7

12

63.4 ± 3.5

9.0 ± 8.1

toric

company proprietary software

N.A.

20/40

20/30

0.10 ± 0.60

0.60 ± 1.10

N.A.

N.A.

Alió et al.8

17

56.6 ± 12.5

9.1

toric

Hoffer Q, SRK-T

keratometer

0.32 ± 0.38

0.20 ± 0.36

−0.62 ± 0.97

1.40 ± 1.13

71

71

Hashemi et al.9

23

59 ± 12.8

3

toric

Hoffer Q (axial length < 22 mm) SRK II (22 to 24.5 mm) Holladay I (24.5 to 26 mm) SRK/T (> 26 mm)

keratometer topography

0.27 ± 0.18 (mild) 0.34 ± 0.19 (moderate) 0.38 ± 0.29 (severe)

0.16 ± 0.09 (mild) 0.18 ± 0.12 (moderate) 0.35 ± 0.13 (severe)

−0.58 ± 0.95 (mild) −0.34 ± 0.90 (moderate) 0.50 ± 0.58 (severe)

1.83 ± 0.90 (mild) 1.25 ± 0.96 (moderate) 4.67 ± 2.31 (severe)

N.A.

N.A.

Kamiya et al.10

19

63.1 ± 9.1

3

toric

SRK-T

keratometer

0.46 ± 0.33

−0.01 ± 0.09

N.A.

0.70 ± 0.60

68

95

  1. IOL = intraocular lens, UDVA = uncorrected visual acuity, CDVA = corrected visual acuity, D = diopter, N.A. = not available.
  2. Results was expressed as mean ± standard deviation.
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