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作者研究用屏障光凝法使后极部球壁金属异物中性化。光凝使异物周围形成瘢痕屏障,限制化学活动物质被周围组织吸收和金属沉着症的发展。为此,作者研究把荧光血管造影(以下简称造影)用于以下目的:诊断异物位置及深度、异物周围新生血管的性质;选择经玻璃体取出异物(以下简称手术取出)的适应证;观察屏障性光凝的效果。
The authors studied the use of barrier photocoagulation to neutralize the posterior pole wall metal foreign bodies. Photocoagulation causes a scar barrier around the foreign body, limiting the absorption of the chemical active substance by the surrounding tissues and the development of metal deposition. To this end, the authors studied the use of fluorescein angiography (hereinafter referred to as angiography) for the following purposes: the location and depth of foreign body diagnosis, the nature of the neovascularization around the foreign body; select the removal of foreign body through the vitreous (hereinafter referred to as surgical removal) indications; Observe the barrier Photocoagulation effect.