Kita M, Negi A, Kawano S, Arai M, Honda Y
Dept. of Ophthalmol., Faculty of Med., Kyoto Univ., Japan.
Nippon Ganka Gakkai Zasshi. 1990 Mar;94(3):263-8.
The effects of the choroidal congestion and lamellar scleral resection on the resorption of the subretinal fluid were studied. Small localized retinal detachments were made in pigmented rabbit eyes by injecting balanced salt solution into the subretinal space. In these control eyes, the subretinal fluid was gradually absorbed and the retina was reattached within 160 +/- 21 min. Choroidal congestion was obtained by ligating a couple of vortex veins. To avoid the effects of IOP on the subretinal fluid resorption, IOP was constantly maintained at 20 mmHg by manometry in all experimental eyes. In these eyes, the resorption time was prolonged about 45% compared with the control eyes. After releasing the choroidal congestion by partial thickness scleral resection, the prolonged resorption time was shortened about 19%, but was still 17% longer than that in the non-treated eyes. The present data suggest that the lamellar scleral resection releases the elevated choroidal tissue pressure and is helpful to evacuate the subretinal space.
研究了脉络膜充血和板层巩膜切除术对视网膜下液吸收的影响。通过向色素兔眼的视网膜下间隙注射平衡盐溶液，造成小范围局限性视网膜脱离。在这些对照眼中，视网膜下液逐渐吸收，视网膜在160±21分钟内复位。通过结扎几条涡静脉造成脉络膜充血。为避免眼压对视网膜下液吸收的影响，所有实验眼均通过眼压计将眼压恒定维持在20 mmHg。在这些眼中，吸收时间比对照眼延长了约45%。通过部分厚度巩膜切除术解除脉络膜充血后，延长的吸收时间缩短了约19%，但仍比未治疗的眼长17%。目前的数据表明，板层巩膜切除术可降低升高的脉络膜组织压力，有助于排空视网膜下间隙。
