This 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.
A 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°55\' ± 2°48\'), compared to the BLF IOL (M = 1°84\' ± 1°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°16\' ± 2°35\') compared to the fellow control eyes (M = 5°42\' ± 3°17\'). Starburst size was also significantly smaller (t = -2.60, p < 0.018) in BLF test eyes (M = 9°57\' ± 4°25\') than the fellow eye with the clear IOL (M = 12°33\' ± 5°25\').
BLF 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.
■这项研究是病例对照设计,受试者之间和内部(对侧植入)。69名参与者使用BLFIOL(n=25;AlconSN60AT),透明IOL(n=24;AlconSA60AT或WF),或两者(n=20)IOL参与。参与者暴露在宽带模拟阳光的点源下,这创造了光环/星暴的外观。视错觉被测量为宽带光诱导的光晕和星暴的直径。
■病例对照分析。使用透明对照透镜(M=3°55\'±2°48\')的参与者的光环大小明显更大(t[35.05]=2.98,p=0.005),与BLFIOL相比(M=1°84±1°34)。Starburst大小在组间没有显著差异。对侧分析。与其他对照眼(M=5°42'±3°17')相比,使用BLF(M=3°16\'±2°35\')的测试眼的光环大小明显较小(t=-3.89,p=.001)。BLF测试眼(M=9°57\'±4°25\')的Starburst大小也明显小于(t=-2.60,p<0.018)。
■BLFIOL过滤短波光并模拟年轻人的视网膜筛查,天然晶状体。这种过滤可以通过减少眼睛扩散/光晕和星暴来减少亮光的一些有害影响。