Blue-Light Filtering Intraocular Implants and Darker Irises Reduce the Behavioral Effects of Higher-Order Ocular Aberrations

Renzi-Hammond, Lisa; Hammond, Billy R.

doi:10.1080/02713683.2022.2025844

Cited by 3 publications

(1 citation statement)

References 32 publications

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“…Eyes with BLF IOLs could perceive 2 point sources of light with significantly less distance between them compared with eyes implanted with UV-only IOLs under both broadband and short-wave experimental conditions; these outcomes were further improved in participants with darker iris color. 30 These results suggest that filtering blue light (a strategy often employed in nature) 31 improved some of the detrimental effects of broadband light and decreased the 2-point light threshold.…”

Section: Blue Light Filtration and Visual Functionmentioning

confidence: 95%

Blue Light Filtration in Intraocular Lenses: Effects on Visual Function and Systemic Health

Kohnen,

Hammond

2024

OPTH

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Blue light–filtering (BLF) intraocular lenses (IOLs) are designed to mimic the healthy natural adult crystalline lens. Studies that evaluated the relative merit of ultraviolet-only IOL design (ie, blocking wavelengths <400 nm) versus BLF IOL design (ie, filtering wavelengths ~400–475 nm in addition to blocking wavelengths <400 nm) on protection and function of the visual system suggest that neither design had a deleterious impact on visual acuity or contrast sensitivity. A BLF design may reduce some aspects of glare, such as veiling and photostress. BLF has been shown in many contexts to improve visual performance under conditions that are stressed by blue light, such as distance vision impaired by short-wave dominant haze. Furthermore, some data (mostly inferential) support the notion that BLF IOLs reduce actinic stress. Biomimetic BLF IOLs represent a conservative approach to IOL design that provides no harm for visual acuity, contrast sensitivity, or color vision while improving vision under certain circumstances (eg, glare).

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Section: Blue Light Filtration and Visual Functionmentioning

confidence: 95%

Blue Light Filtration in Intraocular Lenses: Effects on Visual Function and Systemic Health

Kohnen,

Hammond

2024

OPTH

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Photoregulatory functions drive variation in eye coloration across macaque species

Perea-García,

Massen,

Ostner

et al. 2024

Sci Rep

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Primates, the most colorful mammalian radiation, have previously served as an interesting model to test the functions and evolutionary drivers of variation in eye color. We assess the contribution of photo-regulatory and communicative functions to the external eye appearance of nine macaque species representing all the branches of their radiation. Macaques’ well described social structure and wide geographical distribution make them interesting to explore. We find that (1) the posterior option of the anterior eyeball is more pigmented closer to the equator, suggesting photoprotective functions. We also find that (2) the temporal side of the eyeball is more heavily pigmented than the nasal side. This suggests that eyeball pigmentation in macaques is distributed to reduce damage to the corneal limbus. The inclusion of a translocated population of M. fuscata in our analyses also suggests that external eye appearance may change quickly, perhaps owing to phenotypic plasticity. We find no evidence that communicative functions drive variation in external eye appearance in macaques. These results suggest that the amount of light in a species’ environment drives variation in eye coloration across macaque species. Furthermore, the geographical distribution of macaques hints at important factors that have yet to be accounted for, such as the reflectivity of the terrain a given species inhabits.

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The visual benefits of blue-violet light filtering

Bishop,

Martin,

Buch

et al. 2024

Optician

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Blue-Light Filtering Intraocular Implants and Darker Irises Reduce the Behavioral Effects of Higher-Order Ocular Aberrations

Cited by 3 publications

References 32 publications

Blue Light Filtration in Intraocular Lenses: Effects on Visual Function and Systemic Health

Blue Light Filtration in Intraocular Lenses: Effects on Visual Function and Systemic Health

Photoregulatory functions drive variation in eye coloration across macaque species

The visual benefits of blue-violet light filtering

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