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Abstract
Purpose
To evaluate clinical outcomes after cataract surgery with bilateral implantation of the diffractive trifocal intraocular lens (IOL).
Methods
Forty-four eyes of 22 patients were analyzed in the present study from July 2014 to December 2014. Phacoemulsification with bilateral implantation of an AT Lisa tri 839 MP IOL (Carl Zeiss Meditec, Jena, Germany) was performed. Over a 6-month fol-low-up, the main outcome measures were uncorrected distance visual acuity (UDVA), uncorrected intermediate visual acuity (UIVA) at 80 cm, uncorrected near visual acuity (UNVA) at 40 cm, and spherical equivalent refraction. Visual quality and patient satisfaction were evaluated using a Quality of Vision questionnaire. Finally, the defocus curve was measured.
Results
The mean monocular UNVA, UIVA, and UDVA were 0.23, 0.22, and 0.02 log MAR at 1 month, 0.21, 0.20, and 0.01 log MAR at 3 months and 0.20, 0.22, and 0.01 log MAR at 6 months postoperatively, respectively. The mean binocular UNVA, UIVA, and UDVA were 0.16, 0.12, and 0.0 log MAR at 1 month, 0.15, 0.11, and 0.0 log MAR at 3 months and 0.15, 0.13, and 0.0 log MAR at 6 months postoperatively, respectively. Twelve patients reported glare and 17 patients reported halo. Defocus curve showed best visual acuity results at 0.0 D and second peak at - 2.5 D. The intermediate-vision values were stable.
References
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Figure 1.
Changes in the spherical equivalent during the fol-low up. Postoperative spherical equivalent ranged from -0.5 D to 0 D at all postoperative visits. D = diopter; Preop = preoperative.
Figure 2.
Postoperative uncorrected visual acuity. (A) Monocular uncorrected visual acuity for distant, intermediate, and near dis-tance during the follow-up. (B) Binocular uncorrected visual acuity for distant, intermediate, and near distance during the follow-up. log MAR = logarithm of the minimum angle of resolution.
Figure 3.
Defocus curve. Defocus curve shows best visual acuity results at 0.0 D and second peak at -2.5D. The inter-mediate-vision values were stable. log MAR = logarithm of the minimum angle of resolution.
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