Standard multifocal IOLs are often contraindicated for patients with >1.5D of corneal astigmatism. With Rayner M-flex®T Multifocal Toric IOLs, the combination of multifocal and toric optical components allows the potential benefit of reduced spectacle dependence to be extended to patients with significant corneal astigmatism.
Rayner M-flex® Multifocal IOLs (588F and 638F) are based on a multi-zoned refractive aspheric optic technology, with either 4 or 5 annular zones (depending on IOL base power) providing +3.0D or +4.0D of additional refractive power at the IOL plane (equivalent to +2.25D or +3.0D at the spectacle plane). M-flex® IOLs are noted for their excellent multifocal correction with a marked absence of halos and glare. Furthermore, unlike diffractive IOLs, which are associated with a significant loss of light transmission (typically 18 – 20%) resulting in a corresponding reduction in contrast sensitivity, M-flex® IOLs are associated with superior visual outcomes.
Rayner T-flex® Toric IOLs are designed to offer a precise, superior alternative to incisional methods for the treatment of pre-existing corneal astigmatism. Unlike plate-haptic and multi-piece toric IOLs, T-flex® IOLs have an inherent rotational stability. Superb visual outcomes are achieved because of the dependable absence of rotation in lenses designed with Rayner’s AVH Anti Vaulting Haptics Technology.
Rayner M-flex®T Multifocal Toric IOLs combine the separate optical features of the parent models, M-flex® and T-flex®, to provide a superior multifocal outcome with an accurate, predictable and sustainable toric correction.
In addition to excellent multifocal toric correction, M-flex®T Multifocal Toric IOLs offer all the additional advantages of IOLs in the Rayner injectable IOL range.
588F for base powers > 25.0D
638F for base powers =< 25.0D
Rayner M-flex®T IOLs are currently manufactured as either model 588F or model 638F having a 5.75mm optic or a 6.25mm optic respectively.
The model selection is made automatically by Rayner so that the largest possible diameter optic is supplied for any particular sphere / cylinder / injector nozzle combination.
Model 638F is designed for low and medium power lenses and model 588F is designed for higher power lenses.
Standard Power Range
588F [5.75/12.0mm] (+3.0D & +4.0D)
638F [6.25/12.5mm] (+3.0D & +4.0D)
Non-standard Power Range
588F [5.75/12.0mm] (+3.0D & +4.0D)
638F [6.25/12.5mm] (+3.0D & +4.0D)
Note: Spherical equivalent power is defined as
Sphere + (0.5 x Cylinder)
The Rayner M-flex®T hydrophilic acrylic injectable IOLs are supplied in 0.9% saline solution in a pouched blister pack, sterilised by moist heat and presented in a convenient, ready to use Lens Injection System Pack containing:
