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Comparison of contrast sensitivity, depth of field and ocular wavefront aberrations in eyes with an IOL with zero versus positive spherical aberration.

Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie·2009

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Related Experiment Video

Updated: Jun 8, 2026

Scanning Light Scattering Profiler (SLPS) Based Methodology to Quantitatively Evaluate Forward and Backward Light Scattering from Intraocular Lenses

Scanning Light Scattering Profiler (SLPS) Based Methodology to Quantitatively Evaluate Forward and Backward Light Scattering from Intraocular Lenses

Published on: June 6, 2017

Intraocular lens short wavelength light filtering.

Keith H Edwards¹, G Anthony Gibson

¹LensAR Inc, Winter Park, Florida 32789, USA. keith.edwards@lensar.com

Clinical & Experimental Optometry

|October 19, 2010

Summary

Filtering short wavelength light may impact vision in pseudophakic patients. This review examines the risks and benefits of blue-blocking intraocular lenses (IOLs) for age-related eye conditions.

Area of Science:

Ophthalmology
Vision Science
Gerontology

Background:

Reactive oxygen species are implicated in aging, affecting overall health and specifically the eye.
Cataract and age-related macular degeneration (AMD) are leading causes of blindness in older adults.
Short-wavelength light exposure is linked to AMD, while the aging lens naturally filters some of this light.

Purpose of the Study:

To review the risks and benefits of filtering short-wavelength light in pseudophakic patients.
To evaluate the impact of blue-blocking intraocular lenses (IOLs) on visual function.
To assess the theoretical benefits versus potential drawbacks of blue-blocking IOLs.

Main Methods:

Literature review of studies on short-wavelength light filtering in pseudophakic patients.

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Analysis of the effects of ultraviolet and blue-blocking IOLs on visual function.

Examination of evidence linking light exposure to AMD and cataract progression.

Main Results:

The aging crystalline lens naturally filters shorter wavelengths, offering some protection to the retina.
Ultraviolet-blocking IOLs are standard, but blue-blocking filters are a newer trend with theoretical benefits.
Blue-blocking filters absorb visible spectrum light, potentially affecting visual function.

Conclusions:

The use of blue-blocking IOLs requires careful consideration of potential impacts on visual function.
Further research is needed to fully understand the long-term risks and benefits of filtering short-wavelength light.
Balancing protection from harmful light with optimal visual performance is crucial for pseudophakic patients.