摘要
目的 探讨新型的共焦激光断层扫描仪在黄斑部病变鉴别诊断中的应用价值。方法 运用共焦激光断层扫描仪(HRT)对32例黄斑病变患眼相应病变部位进行检测,以28例正常眼为对照组。结果 黄斑全层裂孔组、板层裂孔组与正常眼组相比以及两病变组间比较黄斑区平均最大深度均有显著差异(P<001)。黄斑水肿组黄斑区视网膜则明显抬升。结论 共焦激光断层扫描地形图是一种非侵入性的检测方法,操作方便、快速、安全,是黄斑部病变鉴别诊断较理想的手段。
ObjectiveTo access the potential of a new diagnostic technology called Heidelberg retina tomography (HRT) for imaging macular diseases.Methods Thirty two patients with macular diseases (fourteen with full thickness macular hole,eight with laminar macular hole and ten with macular edema)underwent scanning of their affected macular area using the HRT.Normal subjects were taken as controls( n =28).The following parameters were evaluated:the average maximal depth of the hole,the area of the hole and the height of elevated retina rim.Results The normal eyes had smooth surface with shallow depression in the macular area.The average depth was (0 047±0 019)mm,and the area was (0 010±0 006)mm 2.The full thickness macular holes characterized by evident cave in the macular with sharp rim and flat base.The average depth was (0 256±0 038)mm,and the area was (0 576±0 250)mm 2.They were much larger than the normal ones( P <0 01).In one patient the retina at the rim of the hole was elevated to 0 086 mm because of subretinal fluid.The laminar macular holes showed irregular depression in the foveal with less sharp edge.The average depth(0 149±0 070)mmand the average area(0 242±0 110)mm 2had significant differences than the former two groups ( P <0 01).The elevation of the surrounding macular indicated the adhesion of vitrous to the retina.In patients with macular edema,the retina was elevated up to an average of (0 325±0 217)mm in the area about (3 260±2 740)mm 2.ConclusionsThe confocal scanning laser tomograph is a new method that allows measurements of the tonography of the internal limiting membrane and pathophysiologic characteristics and in a variety of disorders of the macula.
出处
《眼科研究》
CSCD
2000年第1期47-50,共4页
Chinese Ophthalmic Research
