Search results
Results from the WOW.Com Content Network
This online calculator provides a simple method to adjust a lens power when changes are made to the vertex distance of an optical lens. This adjustment is commonly carried out by an optician when calculating the power of a contact lens, given the spectacle lens prescription.
Contact Lens Vertexing Calculator. OD x. OS x. Vertex Distance 12. Submit ...
A calculator to quickly and easily convert spectacle Rx to a contact lens Rx and its spherical equivalent.
🔎 If you want to calculate vertex compensation for a different lens, not a contact lens (i.e., you're moving your spectacle lens toward or away from your eyes for some reason), enter a non-zero final vertex distance in step 3, and our calculator will yield the results you seek!
Vertex Distance Compensation. Fill in the input fields and then press the Calculate button in order to compute the prescription necessary to compensate for the effects of a change in vertex distance.
Vertex distance refers to the measurement of the distance between the cornea (the front surface of the eye) and the back surface of the eyeglass lens when the glasses are worn by an individual.
A calculator to quickly and easily correct spectacle prescriptions for vertex distance to create contact lens prescriptions in optometric practice.