Vitreous substitutes are traditionally used to stabilize the retina after vitrectomy. In recent years, various approaches have been developed for using the vitreous substitute not only as a tamponade but also as a drug release system to tackle ocular diseases. This review provides an overview of the requirements for vitreous substitutes and discusses the current clinically applied as well as novel polymer-based vitreous substitutes as drug delivery systems, including their release mechanisms, efficiencies, challenges, and future perspectives.
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http://dx.doi.org/10.1167/tvst.11.9.14 | DOI Listing |
Waste Manag
December 2024
School of Environmental Science and Engineering, Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Zhejiang Engineering Research Center of Non-ferrous Metal Waste Recycling, Zhejiang Gongshang University, Hangzhou, Zhejiang 310012, China. Electronic address:
This study demonstrates the potential of secondary aluminum dross (SAD) to enhance the vitrifying hazardous waste incineration fly ash (FA) and bottom slag (BS). Based on the CaO-SiO-AlO ternary phase diagram, a liquid phase can be achieved at relatively low temperatures by carefully adjusting the AlO content, particularly when the CaO to SiO ratio is around 0.66.
View Article and Find Full Text PDFOral Maxillofac Surg
December 2024
Department of Basic and Oral Biology, Ribeirão Preto School of Dentistry, University of São Paulo, Via do Café s/n, Ribeirão Preto, 14040-900, SP, Brazil.
Purpose: To evaluate the efficacy of two third-generation resorbable biomaterials-F18 bioglass and β-tricalcium phosphate (β-TCP)-in promoting new bone formation in post-extraction sockets in rats. β-TCP, a synthetic porous ceramic, is well-established in clinical use, while F18 bioglass, a novel silica based bioglass.
Methods: After extraction of the right upper incisor of 45 rats, the sockets were filled either with F18 or β-TCP, or left to naturally fill with a blood clot in control group.
Ophthalmol Retina
November 2024
Retina Associates of Cleveland, Inc. Electronic address:
Purpose: To analyze endophthalmitis characteristics and risks following a 25-gauge vitrectomy or microincision vitrectomy surgery (MIVS).
Design: Retrospective.
Subjects: Post-MIVS endophthalmitis patients.
Invest Ophthalmol Vis Sci
November 2024
The David J Apple Laboratory for Vision Research, Heidelberg, Germany.
J Biomed Mater Res A
January 2025
William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio, USA.
The vitreous humor undergoes liquefaction with age, resulting in complications that may require a vitrectomy, or surgical removal of the vitreous from the eye. Silicone oil, a common vitreous substitute, lacks properties similar to the natural vitreous. In particular, it lacks antioxidants that may be necessary to reduce oxidative stress in the eye.
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