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Good-Lite Metal Distometer

Patients have been demanding greater Rx accuracy due in part to the increasing popularity of custom progressive addition lenses, many of which require a vertex distance for accurate prescription calculation. This is especially true for the higher power lenses required by Low Vision patients. Further, the increasing use of prisms for Orthoptic exercises or Vision Therapy require accurate assessment of the vertex distance. The Good-Lite Distometer (also called a Vertex Distance) gauge was created to accurately measure the vertex distance between the apex of the cornea and real surface of the trial lens or the inside surface of the spectacle RX lens. A change in vertex distance results in a change in the effective power of the lens. This becomes extremely sensitive above plus or minus five diopters. A conversion scale is supplied with each distometer instrument, which allows the user to quickly and accurately calculate the new correction needed in the spectacle lens, to obtain the same visual acuity as was achieved with the trial lens.

  • The Metal Distometer and Vextexometer conversion dial are designed for durability and years of reliable use.
More Information
Manufacturer Good-Lite
MPN 675500
Array Good-lite
Type of product Distometer
Packaging 1 Each
Product Count 1
Minimum Shipping latency 3
Weight 1.0000
Returns Accepted Yes