Tangent Streak (Bifocal)

Lenses>Specialty GP>Bifocal>Tangent Streak

Link to the Tangent Streak Bifocal Fitting Guide

Design

• Executive style translating bifocal

• Manufactured in Fluorex 700  , Boston ES  and Paragon HDS  material.

Candidates

• Patients who have presbyopia.

• Patients who have occupations and extracurricular activities that demand excellent vision.

• Patients who are willing to wear spectacles for their intermediate vision.

Lens Parameters

• Any base curve radius

• Diameters

9.0mm to 10.0mm

• Truncation

.2mm to .4mm

Fitting

• Use trial lenses in a diagnostic set.

• Call Valley Contax with K’s and Rx, spectacle add, measurement from lower lid to lower pupil margin.