Olson R J
Ophthalmic Surg. 1980 Dec;11(12):864-5.
A corneal punch used for making circular holes in the aorta was tried on pig eyes to check for efficacy and accuracy. This approach was rejected as being clinically useless because the incision necessary to introduce the punch was larger than the diameter of the cut, intraocular trauma was felt to be inevitable due to the large amount of effort necessary to punch, the tissue removed was oval and the internal diameter was much larger than the external diameter of the tissue cut.
一种用于在主动脉上制作圆形孔洞的角膜穿孔器在猪眼上进行了试验，以检查其有效性和准确性。这种方法被认为在临床上无用而被摒弃，因为引入穿孔器所需的切口大于切割的直径，由于穿孔需要大量的力气，眼内创伤被认为不可避免，所切除的组织呈椭圆形，且内径远大于所切割组织的外径。
