ROD AND CONE VISION IN RETINITIS PIGMENTOSA

ROD AND CONE VISION IN RETINITIS PIGMENTOSA
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DOI:
10.1016/0002-9394(56)90377-4
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发表时间:
1956-01-01
影响因子:
4.2
通讯作者:
WALD, G
WALD, G
中科院分区:
医学1区
文献类型:
--
作者:
ZEAVIN, BH;WALD, G

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图1(Zeavin和Wald)。周边适应计示意图。(左)一个可调节的支架固定着一个可旋转的大型铝盘,其开槽与承载臂上的类似槽相吻合,气动电缆释放器的软管以及测试灯和固定灯的电线穿过该槽。将固定灯置于椎间盘前方足够远的位置,以便将灯罩直接置于后方进行中央凹测量。附接到承载臂的配重平衡灯壳体的重量。(Up(右)电路简图。封闭在控制盒中的零件在矩形内绘制,并一直绘制到三叉插头,而连接到测试单元的零件位于插头的另一侧。在通过一个6伏的Transformer并提供一个操作员工作的红灯后,它通向两个与固定灯和测试灯串联的变阻器,分别控制它们的亮度。(右下)灯罩的放大矢状截面。
Fig. 1 (Zeavin and Wald). Diagram of the perimetric adaptometer.(Left) An adjustable stand holds a large, revolvable aluminum disc, slotted to coincide with a similar slot in the carrying arm, through which pass the hose from the pneumatic cable release and wires from the test and fixation lamps. The fixation lamp is held just far enough in front of the disc to allow the lamp housing to be brought directly behind for making foveal measure ments. A counterweight attached to the carrying arm balances the weight of the lamp housing.(Up per right) Simplified diagram of the electric circuit. The part enclosed in the control box is drawn within the rectangle and up to the three-pronged plug, while the part joined to the test unit is on the other side of the plug. After passing through a six-volt transformer and supplying a red light by which the operator works, it leads to two rheostats in series with the fixation and test lights, providing for sepa rated control of their brightnesses.(Lower right) Enlarged sagittal section of the lamp housing.