<p>We provide bifocal lenses and progressive lenses. Start by selecting&nbsp;a&nbsp;frame with a&nbsp;height over 30mm&nbsp;to enable the function of bifocal or progressive&nbsp;lenses and then input your prescription as requested.</p> <p>Please note bifocal/progressive lenses&nbsp;are needed when there is ADD in your prescription.&nbsp;</p> <p>Check <a href="/bifocal-glasses.html">here </a>for frames available with bifocal/progressive lenses.</p> <p>&nbsp;</p>