15 July 2014 : Original article
Clinical outcomes after cataract surgery with implantation of the Tecnis ZMB00 multifocal intraocular lensWojciech LubińskiAE, Jolanta Gronkowska-SerafinAE, Karolina Podborączyńska-JodkoAE
Med Sci Monit 2014; 20:1220-1226
BACKGROUND: The aim of this study was to evaluate visual performance, contrast sensitivity, and patient satisfaction in patients undergoing cataract surgery with bilateral implantation of the Tecnis ZMB00 diffractive multifocal IOL (intraocular lens).
MATERIAL AND METHODS: This was a prospective study of 40 eyes of 20 patients with an age range from 48 to 67 years and undergoing cataract surgery with implantation of the diffractive 1-piece IOL Tecnis ZMB00 (Abbott Medical Optics) in 1 eye and 3 weeks later in the other eye. The following parameters were evaluated at 3 and 6 months after the operation: binocular uncorrected distance, intermediate and near visual acuity (UDVA, UIVA, UNVA), uncorrected binocular photopic and mesopic distance and photopic near contrast sensitivity (CSV-1000), subjective symptoms, and patient satisfaction (VF-14).
RESULTS: No significant change was observed in logMAR UDVA between 3 and 6 months postoperatively (–0.11±0.14 vs. –0.10±0.13, p>0.05). In contrast, UNVA (0.06±0.12 vs. –0.02±0.12, p=0.004) and UIVA (0.12±0.15 vs. 0.07±0.11, p=0.005) in this period improved significantly. At 3 and 6 months after surgery, 85% of patients no longer needed to wear corrective lenses. Contrast sensitivity under different conditions was within normal age-matched limits, with significant improvements for some spatial frequencies at 3 and 6 months after surgery (p<0.04). Mean overall patient satisfaction was 9.39±1.06 and 9.19±1.20 (scale from 1 to 10, with 10 being the best score) at 3 and 6 months, respectively. Low level of halo perception was reported in 75% of patients.
CONCLUSIONS: The Tecnis ZMB00 IOL provides an effective restoration of the distance, intermediate, and near visual function, allowing patients to be totally free of need to wear corrective lenses and providing high levels of patient satisfaction.
Keywords: Cataract Extraction - methods, Contrast Sensitivity - physiology, Lens Implantation, Intraocular - methods, Lenses, Intraocular, Patient Satisfaction - statistics & numerical data, Prospective Studies, Statistics, Nonparametric, Vision, Ocular - physiology
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