Transmittance characteristics of ultraviolet and blue-light-filtering intralocular lenses
Transmittance characteristics of ultraviolet and blue-light-filtering intralocular lenses
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DOI：
10.1016/j.jcrs.2008.03.039
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发表时间：
2008-07-01
影响因子：
2.8
通讯作者：
Laube, Thomas
中科院分区：
文献类型：
--
作者：
Brockmann, Claudia;Schulz, Marcus;Laube, Thomas
目的：记录各种紫外线（UV）和蓝光过滤人工晶状体（IOL）的光谱透射率曲线，评估其紫外线和蓝光辐射吸收能力，并与天然晶状体进行比较。 地点：德国埃森杜伊斯堡-埃森大学眼科。 方法：对来自 6 个制造商的 8 个 IOL 进行评估。使用带有漫透射附件的高性能分光光度计通过 1.5 mm 孔径测量 200 nm 至 800 nm 波长的透射率。 结果：所有评估的 IOL 均提供良好的 UVC（200 至 280 nm）和 UVB（280 至 320 nm）防护，但 2 个 IOL 缺乏足够的 UVA（320 至 400 nm）防护。在蓝光范围（400 至 500 nm）内观察到吸收能力的主要差异。结论：一些紫外线和蓝光过滤人工晶状体的吸收特性与晶状体的吸收特性相似，但有些不同。应进行长期临床试验，以确定防蓝光人工晶状体如何影响年龄相关性黄斑变性进展的风险。
PURPOSE: To record the spectral transmittance curves of various ultraviolet (UV) and blue-light-filtering intraocular lenses (IOLs), evaluate their UV and blue-light-radiation- absorption capacities, and compare them with those of the natural crystalline lens.SETTING: Department of Ophthalmology, Duisburg-Essen University, Essen, Germany.METHODS: Eight IOLs from 6 manufacturers were evaluated. The transmittance of wavelengths from 200 nm to 800 nm was measured using a high-performance spectrophotometer with a diffuse transmittance accessory through a 1.5 mm aperture.RESULTS: All assessed IOLs provided good UVC (200 to 280 nm) and UVB (280 to 320 nm) protection, but 2 IOLs lacked sufficient UVA (320 to 400 nm) protection. Major differences in the absorption capacities were observed in the blue-light range (400 to 500 nm).CONCLUSIONS: The absorption characteristics of some UV and blue-light-filtering IOLs resembled those of the crystalline lens, but some differed. Long-term clinical trials should be performed to determine how blue-blocking IOLs affect the risk for progression of age-related macular degeneration.