文章基本信息

标题：Short-term Clinical Outcomes of Scleral Fixation of Intraocular Lenses Using a Scleral Tunnel and Groove
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作者：Moon, Tae Kyu ; Jang, Jae Yong ; Jung, Hyun Ho 等
期刊名称：Journal of the Korean Ophthalmological Society
印刷版ISSN：0378-6471
出版年度：2019
卷号：60
期号：3
页码：246-252
DOI：10.3341/jkos.2019.60.3.246
出版社：The Korean Ophthalmological Society
摘要：This article presents the first archaeometric research carried out so far on a group of obsidian artifacts collected in the promontory of Pirozza-Spalmatore, the site of a Neolithic settlement on the small island of Ustica (Sicily, Italy). The obsidian assemblage, consisting of 28 artifacts, was subjected to optical, typological and geochemical analyses, the latter carried out by means of a portable pXRF, in order to determine their provenance. The results indicate that 89% of the fragments come from geologic obsidian outcrops on the island of Lipari, and 11% from the island of Pantelleria. It is thus ascertained that, during the Neolithic, Ustica used two different sources of obsidian, located 150–250 km away from the site. These obsidian sources were typical of some western Sicily prehistoric villages, while eastern Sicilian villages seem to have imported obsidian exclusively from Lipari. The analyses indicate that all the obsidian artifacts attributed to Lipari come from the geological deposit of Gabellotto, while those attributed to Pantelleria come from the two distinct deposits of Lago di Venere and Balata dei Turchi.
关键词：Intraocular lens; Scleral fixation; Scleral tunnel and groove