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Base curve radius (BCR) or simply base curve (BC) is the measure of an important parameter of a lens in optometry. On a spectacle lens, it is the flatter curvature of the front surface. On a contact lens it is the curvature of the back surface and is sometimes referred to as the back central optic radius (BCOR). Typical values for a contact ...
The base curve (usually determined from the profile of the front surface of an ophthalmic lens) can be changed to result in the best optic and cosmetic characteristics across the entire surface of the lens. Optometrists may choose to specify a particular base curve when prescribing a corrective lens for either of these reasons. A multitude of ...
The multifunction plastic titanium framed glasses are controlled by pressing tactile buttons on the sidebar of the frame to activate the camera or determine the darkness of the sun glass lens. If a prescription eye glass lens is needed, a prescription lens with a Nominal Base Curve of 2 diopters can be installed by an optometrist. [7]
Abbreviation Term Description (notes) BC Base curve: BOZD Back optic zone diameter BOZR Back optic zone radius BVP Back vertex power CLAPC/CLIPC Contact-lens-associated/induced papillary conjunctivitis
In the interview, Butler noted "You can get amazingly good frames, with a Warby Parker level of quality, for $4 to $8. For $15, you can get designer-quality frames, like what you'd get from Prada." When told that some eyeglasses cost as much as $800 in the United States, Butler remarked, "I know. It's ridiculous. It's a complete rip-off." [60 ...
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