Zelenak Eye Institute · Wixom, Michigan
TECNIS Symfony Lens : EDOF Cataract Surgery in Michigan
A proven extended depth of focus IOL with proprietary achromatic diffractive technology : excellent distance and intermediate vision with enhanced image contrast.
About This Lens
The TECNIS Symfony IOL by Johnson & Johnson Vision uses an achromatic diffractive surface and echelette design to correct chromatic aberration and extend the range of vision. In pooled binocular analysis of 6 clinical studies (310 eyes), distance VA was -0.02 logMAR, intermediate at 66cm was 0.11 logMAR, and near at 40cm was 0.34 logMAR. The defocus curve shows a characteristic gradual slope : continuous range from distance through intermediate with a gentle decline toward near.
Clinical Performance
Defocus Curve : TECNIS Symfony
The defocus curve below is based on published binocular clinical trial data, showing visual acuity (logMAR) across a range of distances. Lower values indicate sharper vision. The gray dashed line shows a standard monofocal lens for comparison. Stars reflect clinical performance at distance, intermediate, and near based on the published data.
Source: Pooled binocular defocus curve, ISPOR systematic review of 6 published studies (n=310 eyes). Lower logMAR = better vision. 0.0 = 20/20. Green shaded area = functional vision (20/32 or better). Gray dashed = monofocal reference.
Key Features
What Sets the TECNIS Symfony Apart
- Achromatic diffractive surface: corrects chromatic aberration for improved image contrast vs conventional diffractive IOLs
- Unimodal gradual defocus curve: smooth slope from excellent distance through good intermediate without discrete peaks
- Pupil-independent performance: consistent vision quality in bright and dim lighting regardless of pupil size
- 0.2 logMAR maintained to -2.0D: functional vision from distance to approximately 50cm
- TECNIS platform: highest available spherical aberration correction
Patient Candidacy
Who Is the TECNIS Symfony Best For?
Symfony is a strong choice for patients seeking extended vision range with enhanced contrast, particularly those in varying lighting conditions.
- Patients wanting excellent distance and intermediate vision with reduced glasses dependence
- Patients who value enhanced image contrast and color fidelity
- Patients comfortable with the possibility of mild nighttime adaptation
- Patients without significant corneal irregularities or severe dry eye
Patients seeking strong near vision without reading glasses may prefer the TECNIS Odyssey full-range IOL. Symfony prioritizes distance and intermediate over near.
Getting Started
Discuss the TECNIS Symfony with Dr. Zelenak
Dr. Zelenak will evaluate your eyes, review your visual goals, and help you determine whether the TECNIS Symfony is the right lens for your cataract surgery. No two patients are the same, and lens selection is one of the most important decisions in cataract surgery.
Visit our Custom Cataract Surgery page to learn about the full lens selection process, or review our Cataract Surgery FAQ for common questions.
Schedule a Lens Consultation
Serving patients in Wixom, Novi, Northville, Livonia, and Metro Detroit.
