瞳距

瞳距一般是指人正常平视事物时,瞳孔间的距离。

对于近视眼或者远视眼患者,配眼镜时,需要考虑这个参数。即两块镜片中心的距离应当与患者的瞳距相配合,否则,即使度数正确,患者戴上眼镜后也会有不适的感觉,并且影响视力

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.