Biodegradable radioactive implants for glaucoma filtering surgery produced by ion implantation
2007
Abstract A biodegradable, β-emitting implant has been developed and successfully tested which prevents fresh intraocular pressure increase after glaucoma filtering surgery. Ion implantation has been used to load the polymeric implants with the β-emitter 32 P. The influence of ion implantation and gamma sterilisation on degradation and 32 P-fixation behavior has been studied by ion beam and chemical analysis. Irradiation effects due to the applied ion fluence (10 15 ions/cm 2 ) and gamma dose (25 kGy) are found to be tolerable.
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