These glasses are available with 3 different types of grid:
In the upper field of vision is a smaller and denser in the lower field of vision a bigger hole grid. Years of experience show that this grid applicatio is preferred over 3.0 diopters, and serves the elderly and prevention.
The same size holes throughout the entire surface suitable for everybody. This grid has been successfully used since the invention of the scanning glasses!
Pinhole glasses with quadratic holes. Longtime experience shows that this pattern is preferred by persons with under 3,0 diopters and is used by non-spectacle wearers for prevention.
Dimensions of glasses:
- Width 138 mm
- Length of earpiece 97 mm
- Nose bridge 17 mm
- vision chart
- multilingual audio CD