Abstract
Purpose
To evaluate the clinical outcomes of patients with diffractive multifocal toric intraocular lens (IOL) implantation.
Methods
Thirty-four eyes of 26 patients underwent diffractive multifocal toric IOL. Uncorrected visual acuity (UCVA) at distant, intermediate and near and residual refractive astigmatism were measured on the first day, at 2 weeks, and 1, 3 and 6 months postoperatively. Optical quality obtained using the Optical Quality Analysis System II (OQAS II), high-order aberrations (HOA) and patient satisfaction questionnaire were evaluated 3 months postoperatively.
Results
At the 6 month postoperative visit, the mean UCVA at distant, intermediate (63 cm, 100 cm) and near were 0.06 ± 0.07, 0.18 ± 0.11, 0.16 ± 0.12 and 0.03 ± 0.06 (log MAR), respectively. The refractive astigmatism decreased significantly from −1.66 ± 1.04 D to-0.54 ± 0.32 D at 6 months postoperatively (p< 0.01). The means of objective scatter index, modulation transfer function (MTF) cut-off value, Strehl ratio and pseudo-accommodation range measured by OQAS II were 1.33 ± 0.67, 37.24 ± 9.67 cdp, 0.22 ± 0.09 and 3.08 ± 0.53 D, respectively. HOA scores for 5 mm and 6 mm were 0.30 ± 0.09 and 0.49 ± 0.15, respectively; 82.3% of the patients were satisfied with the postoperative results, 79.4% of the patients reported they would recommend the procedure to others, and 14.7% of patients reported moderate or severe visual disturbance at night.
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![]() | Figure 2.An example of a patient's image quality with accommodation measured by optical quality analysis system II at post-op 3 months. The graph shows good optical quality at distant (0.0 D) and near (3.0 D). At the 3-month postoperative visit, the mean pseudo-accommodation range of total enrolled patients was 3.08 ± 0.53 D. |
![]() | Figure 3.Satisfaction of the patients with the diffractive multifocal toric intraocular lens (IOL) (%). |
Table 1.
Patient demographics and clinical information
Parameter | Values |
---|---|
Eyes (n) | 34 |
Patients (n) | 26 |
Sex (M:F) | 12:14 |
Age (years) (range) | 51.8 ± 5.5 (43-66) |
UCDVA (log MAR) | 0.77 ± 0.48 |
Spherical equivalent (diopter) (range) | -3.57 ± 4.41 (2.00∼-11.75) |
Mean astigmatism magnitude (diopter) | |
Refractive* (range) | -1.66 ± 1.04 (-0.50∼-4.00) |
Corneal† (range) | 1.21 ± 0.95 (0.50-3.50) |
Mean D power (diopter) (range) | 17.24 ± 4.42 (7.50-22.5) |
IOL model (n) | |
SND1T2 | 2 |
SND1T3 | 16 |
SND1T4 | 9 |
SND1T5 | 7 |
Table 2.
Postoperative visual acuity over time after implantation of the Acrysof® IQ Restor® toric IOL
IOL = intraocular lens; UCDVA = uncorrected distance visual acuity; BCDVA = best corrected distance visual acuity; UNVA = uncorrected near visual acuity at 40 cm distance; UIVA63 = uncorrected intermediate visual acuity at 63 cm distance; UIVA100 = uncorrected intermediate visual acuity at 100 cm distance.
Table 3.
Cylinder refraction (Cyl) and spherical equivalent (SE) at pre op, post op 1 day, 2 weeks, 1, 3 and 6 months
Pre op | 1 day | 2 weeks | 1 month | 3 months | 6 months | p-value* | |
---|---|---|---|---|---|---|---|
Cyl (D) | -1.66 ± 1.04 | -0.58 ± 0.40 | -0.59 ± 0.41 | -0.55 ± 0.40 | -0.59 ± 0.22 | -0.54 ± 0.32 | <0.01 |
SE (D) | -3.5 ± 4.41 | -0.23 ± 0.45 | -0.27 ± 0.37 | -0.31 ± 0.32 | -0.29 ± 0.37 | -0.34 ± 0.35 | <0.01 |
Table 4.
Postoperative astigmatism analysis according to preoperative corneal astigmatism
Table 5.
Optical quality parameters measured by optical quality analysis system (OQAS) II at post-op 3 months
Parameters | OQAS values |
---|---|
OSI | 1.33 ± 0.67 |
MTF cut-off value (cpd) | 37.24 ± 9.67 |
Strehl ratio | 0.22 ± 0.09 |
Table 6.
Ocular aberrometry analysis measured by Zywave II® at post-op 3 months