I actually got the biofocal contact lenses and did fine with them for years once the mono trick didn't work for me any longer. The bifocal lenses are terrific. Just recently my left eye is troublesome, so since I just retired, now I just wear my glasses and take them off when I sew since I don't need them for close work. Then I wear my contacts only when going somewhere special where I don't want to wear glasses. (Just vanity, lol).