03/02/2026
Underwhelmed by your progressive lenses? It could be because your eyes are different.
7 in 10 progressive lens wearers have different prescriptions between their right and left eye, which leads to a binocular disharmony resulting in visual disbalance that may cause eye strain while wearing standard progressive lenses, especially during near work activities and reading.
HOYAโs Binocular Harmonization Technology (BHT) considers the prescription for the right and left eyes separately to calculate optimal binocular lens design. This results in perfect and effortless focusing, constant stability and excellent depth of vision.