Lincoff H, Weinberger D, Reppucci V, Lincoff A
Department of Ophthalmology, Cornell University Medical Center, New York, NY.
Arch Ophthalmol. 1989 Jun;107(6):902-6. doi: 10.1001/archopht.1989.01070010924042.
The absolute intraocular pressure of the gas-containing eye of a rabbit fell with the fall in cabin pressure during a simulated airplane ascent but lagged behind. The lag was manifested clinically as a relative rise in transscleral pressure. The amount of lag depended on the amount of gas in the eye at takeoff. As there is no significant transfer of gas out of the eye during the ascent, the fall in absolute intraocular pressure could only be mediated by expansion of the bubble. The enabling mechanisms for expansion are choroidal compression, scleral expansion, and accelerated aqueous outflow.
在模拟飞机上升过程中，家兔含气眼的绝对眼压随座舱压力下降而降低，但存在滞后现象。这种滞后在临床上表现为经巩膜压力的相对升高。滞后量取决于起飞时眼内气体的量。由于在上升过程中眼内气体没有明显的排出，绝对眼压的降低只能通过气泡膨胀来介导。气泡膨胀的促成机制包括脉络膜受压、巩膜扩张和房水流出加速。
