Harrison K W
J Ophthalmic Nurs Technol. 1989 May-Jun;8(3):97-8.
The collagen shield is fabricated from porcine scleral tissue which closely resembles the collagen molecules of the human eye. The number (12, 24, 72) that suffixes the trademark indicates the maximum number of hours required for the shield to dissolve. The judgment of the physician determines the suitability of repeated applications. The collagen corneal shield holds promise as an effective drug delivery system.
胶原盾由猪巩膜组织制成，与人类眼睛的胶原分子极为相似。商标后缀的数字（12、24、72）表示胶原盾溶解所需的最长小时数。是否适合重复使用由医生判断。胶原角膜盾有望成为一种有效的药物递送系统。
