PRESCRIPTION LENS INSERTS NON PRESCRIPTION

Brand Owner (click to sort) Address Description
RX INSERT CABOT SAFETY CORPORATION 90 MECHANIC ST. SOUTHBRIDGE MA 01550 prescription lens inserts for non-prescription safety glasses;RX;
RXTRA CABOT SAFETY CORPORATION 90 MECHANIC ST. SOUTHBRIDGE MA 01550 prescription lens inserts for non-prescription safety glasses;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. Progressive multifocal ophthalmic lens having a power addition prescription and presenting a complex surface having a fitting cross and a principal meridian of progression. The lens has, when being worn, a normalized reduced root mean square deviation of less than 0.025 microns per diopter over a zone that includes the far vision control point and covering a sector whose apex lies 4° below the fitting cross with an angular aperture of between 150° and 160°; and a progression length of 25° or less, the progression length being defined as the angle of lowered of the view direction from the fitting cross down to the point on the meridian for which the wearer's optical power reaches 85% of the addition prescription.