How Do I Convert My Eyeglass Prescription To Contacts. The prescription is measured in diopters, the refractive power of your new glasses or contacts. Thus, the glasses and contacts are manufactured based on diopter.
Think of this cross as overlaying the lens of the glasses prescription you’re working with, like this: Your glasses sit several millimeters away from your eye, while a contact lens (placed directly onto your eye) will be slightly weaker 1. As i know, there are about 8 spectacled people out of ten who have both prescription glasses and contact lenses.
It's very simple to do.
When you get contacts, your eye doctor will do just a bit more than what is done for an eyeglasses prescriptions.that’s because there are measurements needed for contacts that are different from those of glasses. In most cases, a contact lens prescription is less accurate than a glasses prescription, but it's good enough for contacts as the eye can kinda compensate, but it doesn't work like that for glasses. Your eyeglass prescription only has the power part of the contact lens prescription. In addition to the power the proper base curve (bc) and diameter (dia) are needed to order contact lenses.