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18 Cards in this Set
- Front
- Back
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Where is the segment optical center of a Kryptok circular? A flat top 28? An Ultex? and an executive?
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Kryptok circular-11mm below segment top
Flat top 28-5mm below segment top Ultex-19mm below segment top Executive-center of segment top at level of segment top |
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How much do you add to the seg height to account for the frame bevel?
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0.5mm
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Seg height is measured from the top of the segment to where on the glasses?
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the lowest portion of the eyewire
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Segment inset=
Total inset = |
Segment Inset=DPD-NPD=(70-66)mm/2=2mm in each eye
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