Benefit of coloured lenses for age‐related macular degeneration

Wolffsohn, James S.; Dinardo, Carla; Vingrys, Algis J.

doi:10.1046/j.1475-1313.2002.00036.x

Cited by 33 publications

(25 citation statements)

References 37 publications

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“…Whether the implantation of a yellow IOL is indicated has been extensively discussed in several reviews. 18,[30][31][32][33] It is still not certain whether the potential optical side effects of blue-light-filtering IOLs can be accepted in exchange for a theoretical gain in retinal protection. The potential negative effect on color vision 20,34 was not confirmed in clinical studies in patients with yellow IOLs.…”

Section: Discussionmentioning

confidence: 99%

Intraindividual comparison of color contrast sensitivity in patients with clear and blue-light-filtering intraocular lenses

Schmidinger¹,

Menapace²,

Pieh³

2008

Journal of Cataract and Refractive Surgery

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Section: Discussionmentioning

confidence: 99%

Intraindividual comparison of color contrast sensitivity in patients with clear and blue-light-filtering intraocular lenses

Schmidinger¹,

Menapace²,

Pieh³

2008

Journal of Cataract and Refractive Surgery

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“…For non‐visual function, a number of studies have shown that yellow BBLs can be helpful for the treatment of insomnia, mood disorders, mania and delayed sleep phase disorder . For visual function, yellow BBLs have been recommended for ophthalmic purposes to correct the quality of vision for low‐vision patients, and in AMD patients, to enhance contrast sensitivity . Additionally, such BBLs are commonly used for outdoor visual tasks such as shooting, night driving, flying and skiing to enhance visual performance, especially under low visibility conditions of dusk, haze, and high luminance environments …”

mentioning

confidence: 99%

Modelling the effect of commercially available blue‐blocking lenses on visual and non‐visual functions

Alzahrani

Khuu

Roy

2020

Clinical and Experimental Optometry

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Background: Blue-blocking lenses (BBLs) are marketed as providing retinal protection from acute and cumulative exposure to blue light over time. The selective reduction in visible wavelengths transmitted through BBLs is known to influence the photosensitivity of retinal photoreceptors, which affects both visual and non-visual functions. This study measured the spectral transmittance of BBLs and evaluated their effect on blue perception, scotopic vision, circadian rhythm, and protection from photochemical retinal damage. Methods: Seven different types of BBLs from six manufacturers and untinted control lenses with three different powers (+2.00 D, −2.00 D and Plano) were evaluated. The whiteness index of BBLs used in this study was calculated using Commission International de l'Eclairage (CIE) Standard Illuminates D65, and CIE 1964 Standard with a 2 Observer. The protective qualities of BBLs and their effect on blue perception, scotopic vision, and circadian rhythm were evaluated based on their spectral transmittance, which was measured with a Cary 5,000 UV-Vis-NIR spectrophotometer. Results: BBLs were found to reduce blue light (400-500 nm) by 6-43 per cent, providing significant protection from photochemical retinal damage compared to control lenses (p ≤ 0.05). All BBLs were capable of reducing the perception of blue colours, scotopic sensitivities and circadian sensitivities by 5-36 per cent, 5-24 per cent, and 4-27 per cent, respectively depending on the brand and power of the lens. Conclusion: BBLs can provide some protection to the human eye from photochemical retinal damage by reducing a portion of blue light that may affect visual and non-visual performances, such as those critical to scotopic vision, blue perception, and circadian rhythm.

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“…142 Colour vision was relatively unaffected by the use of coloured lenses in subjects with AMD. 152 A similar study using young patients revealed a systematic detriment to colour vision with increasing cut-off wavelength of the yellow lenses.…”

Section: Filtering Blue Light: the Use Of Yellow Filtersmentioning

confidence: 86%

Intraocular lens short wavelength light filtering

Edwards¹,

Gibson

2010

Clinical and Experimental Optometry

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There is increasing interest in the effects of reactive oxygen species ('free radicals') in ageing, both in the body overall and specifically in the eye. Cataract and age-related macular degeneration (AMD) are two major causes of blindness, with cataract accounting for 48 per cent of world blindness and AMD accounting for 8.7 per cent. Both cataract and AMD affect an older population (over 50 years of age) and while cataract is largely treatable provided resources are available, AMD is a common cause of untreatable, progressive visual loss. There is evidence that AMD is linked to exposure to short wavelength electromagnetic radiation, which includes ultraviolet, blue and violet wavelengths. The ageing crystalline lens provides some protection to the posterior pole because, as it yellows with age, its spectral absorption increasingly blocks the shorter wavelengths of light. Ultraviolet blocking intraocular lenses (IOLs) have been the standard of care for many years but a more recent trend is to include blue-blocking filters based on theoretical benefits. As these filters absorb part of the visible spectrum, they may affect visual function. This review looks at the risks and the benefits of filtering out short wavelength light in pseudophakic patients.

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Benefit of coloured lenses for age‐related macular degeneration

Abstract: The subjective benefit of coloured lenses appears to be due to a minor enhancement of contrast sensitivity.

Cited by 33 publications

References 37 publications

Intraindividual comparison of color contrast sensitivity in patients with clear and blue-light-filtering intraocular lenses

Intraindividual comparison of color contrast sensitivity in patients with clear and blue-light-filtering intraocular lenses

Modelling the effect of commercially available blue‐blocking lenses on visual and non‐visual functions

Intraocular lens short wavelength light filtering

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