Abstract
Apparatus is described for the measurement of lens power distribution across the surface of a progressive addition spectacle lens. Although the method used is different to that specified in BS 2738-7:1996, the measurements are nevertheless comparable, and are considered sufficiently accurate for making basic comparisons of lens type.
Original language | English |
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Pages (from-to) | 502-506 |
Number of pages | 5 |
Journal | Ophthalmic and Physiological Optics |
Volume | 26 |
Issue number | 5 |
DOIs | |
Publication status | Published - 1 Sept 2006 |
Keywords
- Automatic focimeter
- Measurement
- Progressive addition lens