POST CATARACT - Bifocal Vision
Multiple Drop Flat-Top 22mm CR39Æ Uncoated Lenses
60MM DIAMETER LENS BLANKS
Segment Placement: 3mm in, 2mm down

Nominal Curve	True Curve	Radius mm	SAG at 50	Nominal Concave	Edge Thickness	Center Thickness	Adds in Diopter Steps
12.00	11.94	44.389	7.71	6.00	6.0	11.0	2.00, 2.50, 2.75, 3.00, 3.50, 5.00*
14.00	13.98	37.911	9.41	6.00	6.0	12.5	2.00, 2.50, 2.75, 3.00, 3.50
16.00	15.99	33.146	11.38	6.00	6.0	15.0	2.00, 2.50, 2.75, 3.00, 3.50