Materials
ML92, ML210 Boston ES, Boston Equalens, Boston EO, Boston XO, Boston XO2
Powers
-25.00 to +25.00 (in 0.25D steps).
Diameters
9.30mm/ 9.80mm. Average Thickness 0.19mm (all powers)
Base Curves (BOZR)
7.00mm to 9.00mm (0.05mm steps)

Materials
ML92, ML210 Boston ES, Boston Equalens, Boston EO, Boston XO, Boston XO2
Powers
-25.00 to +25.00 (in 0.25D steps).
Diameters
9.30mm/ 9.80mm. Average Thickness 0.19mm (all powers)
Base Curves (BOZR)
7.00mm to 9.00mm (0.05mm steps)