(PRO SOFT) 1.50 PROGRESSIVE REGULAR CORRIDOR

Diameter	Nominal Curve	T.C	Radius	Back Curve	E.T.	C.T.	Sag	Add Power
75	200	2.62	202.00	6.06	13.0	8.00	1.55	+100 TO +300
75	400	4.21	125.87	4.36	11.0	10.75	2.51	+100 TO +300
75	600	6.44	82.35	6.43	9.0	9.00	3.89	+100 TO +300
75	800	7.72	68.64	5.95	7.0	9.50	4.71	+100 TO +300

1.6 PROGRESSIVE REGULAR CORRIDOR

Diameter	Nominal Curve	T.C	Radius	Back Curve	E.T.	C.T.	Sag	Add Power
75	2.25	1.96	270.408	6.07	14.6	9.0	1.16	+100 TO =300
75	4.25	4.58	115.721	6.07	11	9.0	2.73	+100 TO =300
75	5.25	5.84	90.753	6.07	10.3	10.0	3.51	+100 TO =300
75	7.25	7.84	67.602	6.07	7.8	11.0	4.79	+100 TO =300

1.67 PROGRESSIVE REGULAR CORRIDOR

Diameter	Nominal Curve	T.C	Radius	Back Curve	E.T.	C.T.	Sag	Add Power
75	2.25	1.96	271.79	8.02	14.4	5.5	1.15	+100 TO =300
75	4.25	4.58	115.72	8.02	10.8	5.5	2.73	+100 TO =300
75	5.25	5.84	91.07	6.10	9.8	9.4	3.50	+100 TO =300
75	7.25	7.84	67.6	6.10	8.0	11.0	4.79	+100 TO =300

CONCORD 1.49

Diameter	Nominal Curve	T.C	Radius	Back Curve	E.T.	C.T.	Sag	Add Power
75/80	2.00	2.06	257.28	4.47	14.0	10.60	1.22	0.75 TO 3.50
75/80	4.00	4.06	130.54	4.47	12.0	11.41	2.42	0.75 TO 3.50
75/80	5.50	5.55	95.5	6.48	8.0	6.57	3.33	0.75 TO 3.50
75/80	7.50	7.33	72.31	6.48	8.0	9.38	4.46	0.75 TO 3.50

CONCORD HORIZON 1.49

Diameter	Nominal Curve	T.C	Radius	Back Curve	E.T.	C.T.	Sag	Add Power
75	2.00	2.06	257.28	4.47	14.0	10.60	1.22	0.75 TO 3.50
75	4.00	4.06	130.54	4.47	12.0	11.41	2.42	0.75 TO 3.50
75	5.50	5.55	95.5	6.48	8.0	6.57	3.33	0.75 TO 3.50
75	7.50	7.33	72.31	6.48	8.0	9.38	4.46	0.75 TO 3.50

Middle Index S/F Progressive (Regular Corridor)

Material Rfractive Index = 1.542

Diameter	Nominal Curve	T.C	Radius	Back Curve	E.T.	C.T.	Sag	Add Range	Rx Range Recommended
70mm	200	2.64	200.80	5.60	12.00	8.00	1.56	1.00-3.50	-3.25D/-7.50D
70mm	400	4.20	126.40	5.60	11.00	9.50	2.50	1.00-3.50	-1.00D/-3.00D
70mm	600	6.30	83.98	5.60	9.00	10.00	3.80	1.00-3.50	-0.75D/+2.25D
70mm	800	7.82	67.77	5.60	8.00	11.00	4.78	1.00-3.50	+2.50D/+5.50D