Ayaki M, Ohde H, Yokoyama N
Department of Ophthalmology, Shizuoka Red Cross Hospital, Japan.
Ophthalmic Surg. 1993 Jul;24(7):492-3.
We measured the extracted central nucleus (diameter and thickness) of 88 eyes (average patient age, 72 years) undergoing extracapsular cataract extraction (ECCE). The average diameter was 6.51 +/- 0.75 mm; the average thickness, 2.96 +/- 0.33 mm. Since the average lens diameter is approximately 10 mm, a corneoscleral incision of 7 to 8 mm in chord length should be sufficient for its removal in most ECCE cases. Accumulation of these data and further analysis correlating them with age and degree and type of cataract in larger series will be useful in determining the smallest possible incision size required for individual patients.
我们测量了88只接受囊外白内障摘除术（ECCE）的眼睛（患者平均年龄72岁）的晶状体核提取物（直径和厚度）。平均直径为6.51±0.75毫米；平均厚度为2.96±0.33毫米。由于晶状体平均直径约为10毫米，在大多数ECCE病例中，弦长7至8毫米的角巩膜切口应足以将其摘除。积累这些数据并在更大的样本系列中进一步分析它们与年龄、白内障程度和类型的相关性，将有助于确定个体患者所需的最小切口尺寸。
