Contact lens
A contact lens (also known as a "contact") is a corrective, cosmetic, or sometimes protective lens placed on the cornea of the eye.
Parameters
A contact lens can be characterised by
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- Base Curve Radius (BC, BCR)
- Diameter (D, OAD)
- Power (Dioptres - Spherical, Cylindrical and/or reading addition)
- Cylinder axis
- Centre Thickness (CT)
- Material (eg. Oxygen Permeability/Transmissibility (Dk/L, Dk/t), water content, modulus)
- Replacement schedule
~ Table of Content ~
| ► | Introduction |
| ► | History |
| ► | Corrective contact lenses |
| ► | Other types of contact lenses |
| ► | Cleaning and disinfection products |
| ► | Parameters |
| ► | Products |
| ► | See also |
| ► | External links |
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