Glistening formation and light scattering in six hydrophobic-acrylic intraocular lenses
Purpose - To study the glistening formation in various hydrophobic-acrylic intraocular lens (IOL) models, and to evaluate the effect of glistenings on light scattering in these IOLs. - Design - Laboratory investigation. - Methods - The susceptibility of the hydrophobic-acrylic material to develop gl...
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| Hauptverfasser: | , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
4 September 2018
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| In: |
American journal of ophthalmology
Year: 2018, Jahrgang: 196, Pages: 112-120 |
| ISSN: | 1879-1891 |
| DOI: | 10.1016/j.ajo.2018.08.032 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1016/j.ajo.2018.08.032 Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0002939418304938 
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| Verfasserangaben: | Grzegorz Łabuz, Dominik Knebel, Gerd U. Auffarth, Hui Fang, Thomas JTP. van den Berg, Timur M. Yildirim, Hyeck-Soo Son, Ramin Khoramnia |
MARC
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| 245 | 1 | 0 | |a Glistening formation and light scattering in six hydrophobic-acrylic intraocular lenses |c Grzegorz Łabuz, Dominik Knebel, Gerd U. Auffarth, Hui Fang, Thomas JTP. van den Berg, Timur M. Yildirim, Hyeck-Soo Son, Ramin Khoramnia |
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| 520 | |a Purpose - To study the glistening formation in various hydrophobic-acrylic intraocular lens (IOL) models, and to evaluate the effect of glistenings on light scattering in these IOLs. - Design - Laboratory investigation. - Methods - The susceptibility of the hydrophobic-acrylic material to develop glistenings was evaluated in 6 IOL models. Accelerated lens aging was induced by immersing the IOLs in a solution at 45 C for 24 hours and cooled to 37 C for 2.5 hours. Light microscopy and image acquisition were performed. Glistening statistics—that is, microvacuoles' (MV) number and size—were derived from image analysis. Light scattering was measured using a clinical device featuring an adaptation for in vitro IOL assessment. - Results - The number of glistenings differed among the studied IOLs and ranged from 0 to 3532 MV/mm2. In 1 model, glistenings were found only at the periphery, with diffuse light scattering observed centrally despite the absence of microvacuoles. The mean size of glistenings ranged from 5.2 to 10.2 μm. The mean straylight parameter of the IOLs increased from 0.6 to 5.0 deg2/sr after accelerated aging. Straylight elevation demonstrated a proportional relationship with the glistening number. - Conclusions - We showed that hydrophobic-acrylic lenses differ in their resistance to glistenings, as one group proved to be glistening-free, but the other models revealed varying grades of glistenings. Moreover, we demonstrated that the presence of glistenings results in increased straylight, and that straylight proportionally depends on the glistenings number irrespective of the IOL model. However, more research is needed to confirm that the relationship we found holds for all hydrophobic-acrylic IOLs. | ||
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