| 摘要 |
The measuring lens is preferably for adapting multi-focal contact lenses. The measuring lens has means, in the form of engravings, colour insertions, markings, concentric circles, or graticules, of determining the relative movement of a human pupil in relation to the surface of the measuring lens. The relative movement of the pupil in relation to the measuring lens is observed by a suitable apparatus preferably by a slit lamp microscope and or photo or video camera and then electronically determined. |
