To evaluate the visual function of patients with ocular contusion by visual evoked potentials (VEP) and flash electroretinogram (F-ERG).

目的视觉诱发电位(vep)和闪光视网膜电图(F - ERG)联合应用评价钝挫伤眼的视功能。

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ObjectiveTo observe the affectiveness of the lens opacity on the maximal combined reaction (MCR) of the scotopic flash electroretinogram (F ERG).

目的观察白内障晶状体混浊对闪光视网膜电流图（F ERG）最大混合反应（MCR）的影响。

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Objective: To obtain the visual electrophysiological datum by detecting the characteristics of F-ERG, OPS, P-VEP and F-VEP signals of healthy population with different ages and altitudes in Qinghai.

目的：检测青海高原地区不同海拔、不同年龄正常人视网膜电图(F - erg)、振荡电位(ops)及图形视觉诱发电位(P -vep)、闪光视觉诱发电位(F -vep)的特点，得出高原视觉电生理的数据。

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Objective: To obtain the visual electrophysiological datum by detecting the characteristics of F-ERG, OPS, P-VEP and F-VEP signals of healthy population with different ages and altitudes in Qinghai.

目的：检测青海高原地区不同海拔、不同年龄正常人视网膜电图(F - erg)、振荡电位(ops)及图形视觉诱发电位(P -vep)、闪光视觉诱发电位(F -vep)的特点，得出高原视觉电生理的数据。

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