No phosphene or eer was observed in the eyes blind from various causes . 3 2在失明眼则不见电气刺激反应之波型。
2.
Pressure phosphene tonometer ( ppt ) is a new device using phosphene - a visual sensation resulting from pressure applied through the eyelid to the eyeball and then to the retina - to measure iop 闪光眼压计（ pressurephosphenetonometer ）是一种崭新的量度眼压方法-透过对眼睑施压，压力经过眼球传到视网膜，产生光幻闪光的现象，可用以量度眼压。
3.
The device may not be applicable to those with difficulty in hand tremor ; or those who fail to understand or perceive the phosphene ; or those with moderate to advanced glaucoma who will have too little optic nerve function to perceive any useful phosphene . " the key to a successful self - tonometry is proper technique and training 然而，对于手震的病人、不能理解及读取闪光现象的病人，或因青光眼已达中期至严重阶段，大部份视神经已经受损而无法有效读取闪光现象的病人，皆未必适用。
4.
Retinal prostheses currently being developed , for example at the university of southern california , provide what is called phosphene vision ? recipients perceive the world as a grid of light spots , evoked by stimulating the ganglion cells with microelectrodes implanted inside the eye ? and require a wearable computer to process images captured by a video camera attached to the patient ' s glasses 目前研发当中（如美国南加州大学）的人工视网膜，提供的是所谓的光点视觉：透过眼睛里的微电极刺激节细胞，以光点组成的阵列来呈现使用者眼前的世界，但是需要利用穿戴式电脑，先处理使用者眼镜上摄影机拍摄到的影像。
