Search results
Results from the WOW.Com Content Network
The Uppendahl prism system is composed of three cemented prisms, with two glass/air transition surfaces. On its way through the first prism, the bundle of rays (red) is first reflected on a surface that is coated with either a metallic or a dielectric coating (mirroring) and a total internal reflection face just like the one used in a Schmidt-Pechan cluster only the light enters and leaves ...
The prism cover test ( PCT) is an objective measurement and the gold standard in measuring strabismus, i.e. ocular misalignment, or a deviation of the eye. [1] It is used by ophthalmologists and orthoptists in order to measure the vertical and horizontal deviation and includes both manifest and latent components. [1]