NEW!  OptiSync Technology | Introducing Offset Optics for Your Multifocal Contact Lens Patients.  Learn More
multifocal simulator
arc length calculator

SpecialEyes 54 Bifocal Fitting Guide

for designing and prescribing custom soft bifocal contact lenses

Step 1: Obtain patient Ks, manifest Rx, HVID (if possible), pupil size, add power, and eye dominance.  If you are interested in learning techniques to measure a patient’s HVID, visit our How to Measure HVID page available in the learning center.

Step 2: Contact SpecialEyes and let us design the 54 Bifocal contact lenses for you. If you prefer to design the lens yourself, use the SpecialEyes Calculator or Prescribing Nomogram and the Bifocal Center Zone Starting Points. We recommend starting with the near center lens on the dominant eye and the distance center lens on the non-dominant eye. (The near center lens is the distance-vision lens and the distance center lens is the near-vision lens.)

center zones

Download a PDF version of the Bifocal Center Zone Starting Points

Step 3: Provide the lens design or exam parameters to SpecialEyes via phone, email, or fax:
Phone: 866-404-1060
Fax: 866-404-1030
Your trial 54 Bifocal contact lenses will arrive in 2-4 business days

Step 4: Evaluate on-eye performance of the trial bifocal contact lenses. Assess fit and visual acuity at both distance and near. If these are acceptable, dispense the lenses and allow the patient to adapt. Re-evaluate the lenses at the next follow-up visit. If performance is acceptable, your successful trial lenses become the first pair. You may then contact us (using any of the above methods) to order the remaining supply. To improve performance or fit, proceed to step 5.

Step 5: Contact a SpecialEyes consultant to order remake trial lenses based off of your bifocal contact lens fitting evaluation results. 
Phone: 866-822-2020
Online: Complete and submit the Request Consultation form.

Provide details on fit of lens, binocular visual acuity at distance and near, monocular visual acuity at distance and near, and over-refraction results. The center-zone size, fit, and power of the 54 Bifocal contact lens can be altered to assist in meeting each patient’s specific distance and near visual-acuity needs.