Tecnis 1-Piece multifocal good results report

[John C Hagan III, MD, FACS, FAAO]

Source: Br J Ophthalmol  |  Posted 2 weeks ago



Clinical evaluation of a multifocal aspheric diffractive intraocular lens; Schmickler S, Bautista C, Goes F, Shah S, Wolffsohn J; British Journal of Ophthalmology (BJO) 97 (12), 1560-4 (Dec 2013)

Tags:  Cataract

AIM To evaluate the performance of an aspheric diffractive multifocal acrylic intraocular lens (IOL), ZMB00 1-Piece Tecnis.

SETTING Five sites across Europe.

METHODS Fifty-two patients with cataracts (average age 68.5±10.5 years, 35 female) were bilaterally implanted with the aspheric diffractive multifocal IOL after completing a questionnaire regarding their optical visual symptoms, use of visual correction and their visual satisfaction. The questionnaire was completed again 4-6 months after surgery along with measures of uncorrected and best-corrected distance and near visual acuity, under photopic and mesopic lighting, reading ability, defocus curve testing and ocular examination for adverse events.

RESULTS The residual refractive error was 0.01±0.47D with 56% of eyes within ±0.25D and 97% within ±1.0D. Uncorrected visual acuity was 0.02±0.10logMAR at distance and 0.15±0.30 logMAR at near, only reducing to 0.07±0.10logMAR at distance and 0.21±0.25logMAR at near in mesopic conditions.The defocus curve showed a near addition between 2.5-3.0 D allowing a reading acuity of 0.08±0.13 logMAR, with a range of clear vision<0.3 logMAR of ∼4.0 D. The average reading speed was 121.4±30.8 words per minute. Spectacle independence was 100% for distance and 88% for near, with high levels of satisfaction reported. Overall rating of vision without glasses could be explained (r=0.760) by preoperative best-corrected distance acuity, postoperative reading acuity and postoperative uncorrected distance acuity in photopic conditions (p<0.001). Only two minor adverse events occurred.

CONCLUSIONS The ZMB00 1-Piece Tecnis multifocal IOL provides a good visual outcome at distance and near with minimal adverse effects.

[John C Hagan III, MD, FACS, FAAO]

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[KayakerNC]

Comparison - similar IOLs & groups of patients.  same criteria & length of time.
Wow.  Should be easy to compare different IOL results.  Except it's not.
It would be nice if the industry was a little more patient friendly.

[John C Hagan III, MD, FACS, FAAO]

The comparison is other similar type IOLS used on a similar group of patients using same criteria for the same length of time.

JCH MD

[KayakerNC]

Minimal adverse effects?  Depends on your definition of minimal.

"Adverse Events
The most frequently reported adverse event that occurred during the clinical trial of the TECNIS® Multifocal lens was surgical reintervention, which occurred at a rate of 3.7%"

[John C Hagan III, MD, FACS, FAAO]

Study from 2013 ophthalmology literature.  No conflict of interests JCH MD