Correction range of -4.5 to +4.5 diopter
Iris
48 colour combinations in two rings of six colours
Can be used as one or others from a bank of six colours:
- Wheel (nearest eye): pale yellow, avocado green, orange, brown, dark or light grey
- Wheel: light blue, dark blue, lemon yellow, red, light green and lilac
Colours from one ring can be mixed with the other - to provide the remaining 36 colour options
Can be used as an iris only
Each engraved with its own serial number
Supplied with 5 external push-fit rubber rings
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