We have a full range of sunglasses in many different designs with a large selection of tints, mirror tints, transitions and polarized lenses.
All our sunglasses can be fitted with single vision / bifocal / varifocal or non presciption lenses.
Wrapped Frames (8 Base)
Most frames are suitable for a prescription lens and one of the factors that controls the type of lens that is used, is called ‘The Frame Base’ / ‘Base Curve’.
The design of sunglasses is to eliminate as much sunlight as possible and the best way to achieve this is with a frame that follows the contours of our head shape, a standard traditional prescription frame will have little frame ‘wrap’ and is know as a 4 or 6 Base frame – suitable for any type of lenses and tint.
Anything in a more wrapped design or higher ‘Base Curve’ figure must use a specific type of lens to match the curve of the frame, optically and asthetically – 8 Base.
The picture above shows 3 frame examples, 6, 8 and 9 base curves – A lens’s “base curve” is defined as the amount of curvature of the front of the lens. Typically, the lens front is not altered during the prescription making process. All the power of the lens is worked into its back: the side facing your eyes.