Abstract:
AIM:To assess the biosafety of a poly(acrylamide-co-sodium acrylate) hydrogel (PAH) as a 3D-printed intraocular lens (IOL) material. METHODS:The biosafety of PAH was first evaluated in vitro using human lens epithelial cells (LECs) and the ARPE19 cell line, and a cell counting kit-8 (CCK-8) assay was performed to investigate alterations in cell proliferation. A thin film of PAH and a conventional IOL were intraocularly implanted into the eyes of New Zealand white rabbits respectively, and a sham surgery served as control group. The anterior segment photographs, intraocular pressure (IOP), blood parameters and electroretinograms (ERG) were recorded. Inflammatory cytokines in the aqueous humor, such as TNFα and IL-8, were examined by ELISA. Cell apoptosis of the retina was investigated by TUNEL assay, and macroPAHge activation was detected by immunostaining. RESULTS:PAH did not slow cell proliferation when cocultured with human LECs or ARPE19 cells. The implantation of a thin film of a 3D-printed IOL composed of PAH did not affect the IOP, blood parameters, ERG or optical structure in any of the three experimental groups (n=3 for each). Both TNFα and IL-8 in the aqueous humor of PAH group were transiently elevated 1wk post-operation and recovered to normal levels at 1 and 3mo post-operation. Iba1+ macroPAHges in the anterior chamber angle in PAH group were increased markedly compared to those of the control group; however, there was no significant difference compared to those in the IOL group. CONCLUSION:PAH is a safe material for 3D printing of personal IOLs that hold great potential for future clinical applications.
journal_name
Int J Ophthalmoljournal_title
International journal of ophthalmologyauthors
Li JW,Li YJ,Hu XS,Gong Y,Xu BB,Xu HW,Yin ZQdoi
10.18240/ijo.2020.10.03subject
Has Abstractpub_date
2020-10-18 00:00:00pages
1521-1530issue
10eissn
2222-3959issn
2227-4898pii
ijo-13-10-1521journal_volume
13pub_type
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journal_title:International journal of ophthalmology
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journal_title:International journal of ophthalmology
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pub_type: 杂志文章
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pub_type: 撤回出版物
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pub_type: 杂志文章
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doi:10.18240/ijo.2016.05.16
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pub_type: 杂志文章
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