Lens Accuracy

As a clinician, are you aware that ISO industry standards for quality assurance allow for a differential in actual intraocular lens power versus the box labelled power? This is often referred to as lens tolerance or variance? 

 

All IOL companies manufacture to this ISO standard, which may be as much as +/-0.4D  in the midrange and as much as +/-1.0D in the higher power range. Which in practical terms means a lens labelled 19.5D could be closer in accuracy +20d than a labelled +20.0d lens implant. Raising the question of whether half dioptre increments are relevant.

 

Lenstec’s superior manufacturing processes which exceed the ISO industry standards for lens power tolerance v's actual lens power to only +/-0.11D address this issue. Manufacturing IOLS with the aim of being the most accurate lenses globally. 

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To achieve excellent patient outcomes, this unique technology is combined with smaller dioptre increments of 0.25D rather than the standard 0.5D increments. Providing clinicians with the greatest predictability for achieving closer to intended target refraction for patients with no change to surgical technique or pre/post-operative work.