Clinical Assessment of a Customized Free-form Progressive Addition Lens Spectacle

NACompletedINTERVENTIONAL
Enrollment

95

Participants

Timeline

Start Date

February 28, 2009

Primary Completion Date

October 31, 2009

Study Completion Date

October 31, 2009

Conditions
Presbyopia
Interventions
DEVICE

Standard, non-free-form, non-customized PAL spectacles

Control spectacles include several different PAL brands as selected by patients in the UC Berkeley Optometry Clinic and purchased in the Eyewear Center; after successful fitting and purchase, potential subjects were recruited for the trial.

DEVICE

Individually customized free-form surfaced PAL spectacles

Test spectacles are Zeiss Individual, free-form surfaced, and customized using the iTerminal device to account for individual back vertex distance, wrap angle and pantoscopic tilt

Trial Locations (1)

94720-2020

Clinical Research Center, School of Optometry, University of California, Berkeley, Berkeley

Sponsors

Collaborators (1)

All Listed Sponsors
collaborator

Carl Zeiss Meditec, Inc.

INDUSTRY

lead

University of California, Berkeley

OTHER

NCT01234207 - Clinical Assessment of a Customized Free-form Progressive Addition Lens Spectacle | Biotech Hunter | Biotech Hunter