Schaefer A, Schönfelder J
Gegenbaurs Morphol Jahrb. 1983;129(4):425-9.
The postnatal development of vestibulo-ocular reactions is among other factor probably caused by changes of the passivee mechanical properties of the bulb joint system. Therefore, curarized rabbits from the newborn up to the adult age were studied in respect of the passiv deviation of the ocular bulb. The required force of stepwise traction (5 degrees each) of the bulb between the primary position and a 20 degrees deviation was measured. A linear enhancement of the force with increasing deviation angles was found in all age groups. Force relief resulted in a hysteresis in each case, the bulb did not reach the primary position. There were no differences of the force between newborns and adult animals, but 16 to 20 d old rabbits exhibited a statistical significant decrease of the required force in all deviation steps, except in 5 degrees.
球关节系统被动力学特性的变化可能是导致前庭眼反射产后发育的其他因素之一。因此,研究了新生至成年期箭毒化兔眼球的被动偏移情况。测量了眼球从初始位置到20度偏移之间逐步牵引(每次5度)所需的力。在所有年龄组中,均发现随着偏移角度增加,力呈线性增强。每次力的释放都会导致滞后现象,眼球未回到初始位置。新生兔和成年动物之间的力没有差异,但16至20日龄的兔子在除5度外的所有偏移步骤中,所需力均有统计学意义的下降。