4.3 Article

The Effects of Blue-Light Filtering Intraocular Implants on Glare Geometry

期刊

CURRENT EYE RESEARCH
卷 48, 期 7, 页码 639-644

出版社

TAYLOR & FRANCIS INC
DOI: 10.1080/02713683.2023.2192446

关键词

Intraocular lens; halo; starburst; dysphotopsia; blue-light filter

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This study aims to determine whether blue-light filtering intraocular lenses (IOLs) can reduce the size of halos and starbursts in patients after cataract surgery. The results showed that patients with blue-light filtering IOLs had significantly smaller halo size compared to those with regular IOLs, while the difference in starburst size was not significant.
PurposeOne common complaint with natural opacified lenses is the deleterious effects of higher-order ocular aberrations and intraocular scatter, such as halos and starbursts, which are not always remedied with surgery and intraocular lens (IOL) implantation. Blue-light filtering (BLF) IOL filter scatter-prone short-wave light. Here, we determine whether BLF IOL reduce halo and starburst size.MethodsThis study was a case-control design, between- and within-subjects (contralateral implantation). Sixty-nine participants with either the BLF IOL (n = 25; AlconSN60AT), clear IOL (n = 24; AlconSA60AT or WF), or both (n = 20) IOL participated. Participants were exposed to a point source of broadband simulated sunlight, which created the appearance of halos/starbursts. Dysphotopsia was measured as the diameter of broadband light-induced halos and starbursts.ResultsA case-control analysis. Halo size was significantly larger (t[35.05] = 2.98, p = 0.005) in participants with the clear control lens (M = 3 degrees 55 ' +/- 2 degrees 48 '), compared to the BLF IOL (M = 1 degrees 84 ' +/- 1 degrees 34 '). Starburst size was not significantly different between groups. Contralateral analysis. Halo size was significantly smaller (t = -3.89, p = .001) in test eyes with the BLF (M = 3 degrees 16 ' +/- 2 degrees 35 ') compared to the fellow control eyes (M = 5 degrees 42 ' +/- 3 degrees 17 '). Starburst size was also significantly smaller (t = -2.60, p < 0.018) in BLF test eyes (M = 9 degrees 57 ' +/- 4 degrees 25 ') than the fellow eye with the clear IOL (M = 12 degrees 33 ' +/- 5 degrees 25 ').ConclusionsBLF IOL filter short-wave light and mimic retinal screening by the young, natural crystalline lens. Such filtering can reduce some deleterious effects of bright light by decreasing ocular diffusion/halos and starbursts.

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