Technical Specifications

*It is recommended that surgeons personalize their A-constant based on their surgical techniques and equipment, experience and post-operative results. For more information please visit Hanita Lenses web site

Attributes

Advanced Optical Design

 The Aspheric HP lenses were designed using the most advanced tools by a professional R&D team of optical and mechanical engineers.  

The optical profile of the HP lenses was calculated using ZEMAX™ software – a simulating tool for the optical design optimization. 

Calculations were aimed to minimize all aberrations, including the spherical aberration of the cornea, and to optimize the MTF (Modulated Transfer Function).

Eye Model

The optical design of the HP lenses was performed using the Arizona Eye Model[1]. 

The parameters and dimensions of the eye model are consistent with average human data. The model was designed to match clinical levels of aberration, both on and off axis. The result is an accurate simulation of the visual performance of the HP lense in a post-operative eye.

[1] Field Guide to Visual and Ophthalmic Optics; Jim Schwiegerling; Nov. 2004

Geometrical Design 

Both platforms of the HP lenses ensure excellent stability and centration due to the carefully designed geometry, ensuring wide angle of contact and perfect anatomical stability over time. 360° square edge in order to minimize PCO.

Material

 The HP lenses are made of an aliphatic hydrophobic material resulting with a very low glistening effect^[1,2 ]. 

The HP hydrophobic material incorporates a natural yellow, violet filtering, chromophore for better protection of the retina.

^{[1] Data from Benz Research and Development QA Dept}

^{[2] Glistening in the Single -Piece Hydrophobic, Acrylic Intraocular Lenses; Aaron Waite, Nathan Faulker and Randall J Olson; J Ophthalmol 2007; v144: 143- 144}