2008 Volume 29 Issue 3 Pages 99-102
In order to comfortably use glasses with the progressive addition lenses (PALs), it is necessary to familiarize that patient with PALs’ characteristic aberrations. If the additional lens power is smaller, the PAL aberration is less. Commencement of PAL use in initial presbyopia is recommended. If, unfortunately, the patient has passed through the initial presbyopic period without using PAL, the additional lens power of the PAL first prescribed should be set lower than usual; the power should be amended after the patient becomes familiar with PAL use, and so becomes able to use adequately powered PAL with no problems. I explain how to prescribe glasses with PALs that provides comfortable vision.
