IOT announces the issuance of US patent 2018/0239167 A1 for Steady Methodology, a unique technology for creating progressive lenses with reduced peripheral mean sphere power.

Steady Methodology, available only on Camber™ Steady lenses, is a technological breakthrough in free form digital progressive lens design. For over 50 years lens designers have focused on controlling unwanted cylinder power on progressive lenses. The introduction of free form digital lenses has allowed for improved visual performance and the more precise placement of this unwanted power. Steady Methodology is a new and different approach. It addresses unwanted changes in sphere power in the lateral portions of the lens in addition to unwanted cylinder error.