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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 eyewear software and apps allow integration with mobile devices to live-stream recordings and sound to social networks and YouGen.tv. The YouGen.tv website is an app platform provided and developed by Vergence Labs for Epiphany Eyewear users. [8] The built-in physical computer memory can store 8 GB, 16 GB or up to 32 GB of data.
Using a phoropter to determine a prescription for eyeglasses. An eyeglass prescription is an order written by an eyewear prescriber, such as an optometrist, that specifies the value of all parameters the prescriber has deemed necessary to construct and/or dispense corrective lenses appropriate for a patient.
Diameter and base curve radius. The parameters specified in a contact lens prescription may include: Brand name; Material; Base curve radius (BC, BCR) Diameter (D, OAD) Optical power in diopters (dpt) Center thickness (CT) Prescriptions for contact lenses and glasses may be similar but are not interchangeable.
Base curve: BOZD Back optic zone diameter BOZR Back optic zone radius BVP Back vertex power CLAPC/CLIPC Contact-lens-associated/induced papillary conjunctivitis CLARE Contact-lens-associated red eye CLPU Contact-lens-associated peripheral ulcer Dk Unit of permeability DW Daily wear EW Extended wear FOZD Front optic zone diameter FVP