Yamabayashi S, Aguilar R N, Hosoda M, Tsukahara S
Department of Ophthalmology, Yamanashi Medical College, Japan.
Br J Ophthalmol. 1991 Nov;75(11):652-5. doi: 10.1136/bjo.75.11.652.
The effect of body position on the intraocular and blood pressures of normal volunteers and of patients with ocular hypertension and low tension glaucoma was studied. Changing from the sitting to the supine position increased the intraocular pressure by an average of 4.4 (SD 2.0) mm Hg in the control group, 4.0 (SD 2.0) mm Hg in the ocular hypertension group, and 4.1 (SD 1.8 mm Hg) in the low-tension glaucoma group. After 30 minutes in the supine position the intraocular pressure in normal volunteers and patients with low tension glaucoma remained stable. In contrast patients with ocular hypertension showed a further significant increase in intraocular pressure of 1.6 (SD 2.8) mm Hg (p = 0.004). This was accompanied by an equally significant decrease in blood pressure (p less than 0.001). We believe that these are manifestations of different mechanism of intraocular pressure regulation between these groups.
研究了体位对正常志愿者、高眼压症患者和低眼压性青光眼患者眼压及血压的影响。对照组从坐位改为仰卧位时，眼压平均升高4.4（标准差2.0）mmHg，高眼压症组升高4.0（标准差2.0）mmHg，低眼压性青光眼组升高4.1（标准差1.8）mmHg。仰卧位30分钟后，正常志愿者和低眼压性青光眼患者的眼压保持稳定。相比之下，高眼压症患者的眼压进一步显著升高1.6（标准差2.8）mmHg（p = 0.004）。同时血压也有同等程度的显著下降（p < 0.001）。我们认为这些是这些组之间眼压调节机制不同的表现。
