Arecent study by Soler et al. on the working distance and mobile phone usage distance of 454
participants found that though working distance varies amongst individuals, mobile phone usage distance is around +/- 33 cm.
This reinforces the need to have better visual acuity at 33 cm in order to achieve higher spectacle independence and patient satisfaction.
In recent years, a fast evolution of presbyopia-correcting intraocular lenses (IOLs) TECNIS Synergy
has occurred, from the popularization of extended depth of focus (EDOF) IOL designs to optimization of diffractive trifocal IOLs that are based on different optics principles.
However, depending on the lens optical properties, light distribution with diffractive lens may not always be fully efficient, resulting to light loss.
On the other hand, trifocals would demonstrate reduced visual acuity in low-contrast conditions.
As such, the main objective of new IOL designs today is to provide the maximum level of range of focus in all lighting conditions.
TECNIS Synergy™ IOL, the latest presbyopia-correcting lens developed by Johnson & Johnson Vision
(Jacksonville, Florida, USA), is a new presbyopia correction approach that combines two diffractive technologies — the EDOF
and multifocal diffractive technologies in the same lens, with the aim of delivering continuous highcontrast vision from far to near, even in low lighting conditions.
As a one-piece presbyopia-correcting IOL with a 6 mm optic and an overall length of 13 mm, ลาวสามัคคี วีไอพี
the TECNIS SynergyTM IOL has C-loop haptics, offset from the optics and a continuous 360° posterior square edge. It is made of a hydrophobic acrylic material with ultraviolet and violet light absorber.
It is an aspheric-correcting IOL and also reduces chromatic aberration.
Clinical performance Range of vision A prospective, multicenter, bilateral implant, randomized (2:1)
clinical study among 12 centers worldwide evaluated the clinical performance of TECNIS Synergy™
IOL compared to AcrySof® IQ PanOptix® Trifocal IOL (Alcon, Geneva, Switzerland).
One hundred and seventeen (117) subjects were implanted with TECNIS Synergy™ IOL, while 60 subjects were implanted with PanOptix® Trifocal IOL.
Interim 3-months study results show that TECNIS Synergy™ IOL provides superior visual performance across every distance and the widest range of continuous vision,
from distance to 33 cm (Graph 1), with TECNIS Synergy™ IOL subjects achieving 0.8 LogMAR (0.16) and PanOptix® Trifocal IOL subjects achieving 1.5 LogMAR (0.032) at 33 cm.
The TECNIS Synergy™ IOL is also shown to provide close to 0.5 to 1 line of visual acuity at very near distance TECNIS Synergy.
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