The Distometer is designed to measure the distance between the cornea and spectacle or trial lenses (vertex distance). A change in vertex distance results in a change in the effective power of the lens. This becomes especially sensative above plus or minus five diopters. A conversion scale is supplied with each distometer instrument, which allows you to quickly and accurately calculate the new correction necessary in the spectacle lens, to obtain the same visual acuity as was achieved with the trial lens. |
| Click any picture for a closer look! These optical & ophthalmic instruments are selected from our stock of thousands. If you don't see the instrument you want, please be sure to call (800) 426-9938. All images and descriptions Copyright © Western Ophthalmics Corporation 2008 All rights reserved. No portion of this website may be copied without express written permission of the owners. |