Glasses to Contacts Vertex Conversion Chart
This contact lens vertex conversion chart compares glasses and contact lens optical powers at a 12 mm spectacle vertex distance. It is spherical-only: CYL = 0.…
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Are Contact Lens Prescriptions the Same as Glasses?
Glasses and contact lens prescriptions are not interchangeable. Both describe vision correction, but a contact prescription also identifies the fitted lens product and its relevant specifications.…
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