V
- variable inset
- varifocal lens
- varifocal semi-finished lens blank
- vertex
- vertex distance
- vertex image distance (for stand magnifiers)
- Vertex power
- vertical centreline
- vertical segment displacement segment drop
- viewing lenses
- viewing system
- visible radiation, light
- visual axis
- visual field
- visual point
- Visual targets for fusion
- Visual targets for simultaneous perception
- Visual targets for stereoscopic vision