Abstract
Purpose
To evaluate postoperative spherical aberration, contrast sensitivity and depth of focus after implanting 3 different aspheric intraocular lenses.
Methods
Fifty-six eyes (18 eyes for Akreos adapt Advanced Optics (AO), 20 eyes for AcrySof IQ SN60WF and 18 eyes for Tecnis Acrylic IOL ZA9003) of 48 patients were evaluated. Internal ocular aberration including spherical aberration and higher-order aberration and contrast sensitivity were evaluated 3 months after lens implantation. In addition, visual acuities at 33 cm and 1 m distance were measured with the far vision corrected state to calculate depth of focus.
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Figure 1.
Contrast sensitivity test of three groups at photopic condition (A) and mesopic condition (B). There was no statistically significant difference among three groups.
![jkos-50-1639f1.tif](/upload/SynapseXML/0035jkos/thumb/jkos-50-1639f1.gif)
Table 1.
Optical characteristics of the aspherical IOLs* used in the study
Charateristics | Akreos adapt AO | AcrySof IQ SN60WF | Tecnis ZA9003 |
---|---|---|---|
Optic type | Monofocal | Monofocal | Monofocal |
Lens | 1-piece | 1-piece | 3-piece |
Optical material | Hydrophilic acrylic | Hydrophobic acrylic | Hydrophobic acrylic |
Refractive index | 1.458 | 1.55 | 1.47 |
Optic size (mm) | 6 | 6 | 6 |
Overall length (mm) | 10.5∼11.0 | 13 | 13 |
Design | Prolate anterior and posterior surfaces | Prolate posterior surface | Prolate anterior surface |
Haptic angulation | 0 | 0 | 5 |
Haptic material | Hydrophilic acrylic | Hydrophobic acrylic | PMMA† monofilament |
Sph A‡ (μm) | 0 | −0.20 | −0.27 |
Table 2.
Demographics of study groups
Akreos adapt AO | AcrySof IQ SN60WF | Tecnis ZA9003 | p-value | |
---|---|---|---|---|
No* of eyes (%) | 18 | 20 | 18 | |
OD:OS | 9:9 | 10:10 | 9:9 | |
Gender (M:F) | 6:12 | 10:10 | 10:8 | |
Mean Age (± SD†) | 62.29 (±8.89) | 64.21 (±8.85) | 64.92 (±13.43) | 0.789 |
BCVA‡ (± SD) | −0.02 (±0.12) | 0.04 (±0.06) | 0.03 (±0.05) | 0.195 |
Table 3.
Total ocular aberrations (μm) of three groups measured by iTrace® (Mean± Standard deviation)
IOL groups | RMS* total | HO A† | Sph A‡ | Coma 7A | Coma 8A | Trefoil 6A | Trefoil 9A |
---|---|---|---|---|---|---|---|
AO | 1.46±0.38 | 0.80±0.33 | 0.26±0.20 | −0.09±0.24 | 0.12±0.31 | 0.12±0.29 | −0.04±0.28 |
IQ | 1.46±0.64 | 0.63±0.26 | 0.00±0.14 | 0.07±0.23 | 0.06±0.26 | 0.12±0.40 | −0.07±0.25 |
Tecnis | 1.09±0.39 | 0.56±0.21 | −0.01±0.13 | −0.01±0.23 | −0.02±0.23 | −0.09±0.29 | 0.07±0.21 |
p-value | 0.107 | 0.071 | 0.000§ | 0.143 | 0.385 | 0.198 | 0.351 |
Table 4.
Internal aberrations (μm) of three groups measured by iTrace® (Mean± Standard deviation)
IOL groups | RMS* total | HO A† | Sph A‡ | Coma 7A | Coma 8A | Trefoil 6A | Trefoil 9A |
---|---|---|---|---|---|---|---|
AO | 1.54±0.69 | 0.90±0.44 | −0.02±0.17 | −0.14±0.34 | 0.13±0.27 | 0.20±0.36 | −0.28±0.31 |
IQ | 1.69±0.70 | 0.80±0.40 | −0.22±0.16 | 0.06±0.28 | 0.05±0.22 | 0.16±0.44 | −0.08±0.27 |
Tecnis | 1.44±0.70 | 0.60±0.24 | −0.28±0.10 | −0.09±0.19 | 0.01±0.27 | 0.10±0.33 | −0.02±0.25 |
p-value | 0.605 | 0.134 | 0.000§ | 0.116 | 0.455 | 0.810 | 0.072 |