Diopters to Radius
Conversion Chart
39.00
39.25
39.50
39.75
40.00
40.25
40.50
40.75
41.00
41.25
41.50
41.75
42.00
42.25
42.50
42.75
43.00
43.25
43.50
43.75
44.00
44.25
44.50
44.75
45.00
45.25
45.50
45.75
46.00
46.25
46.50
46.75
47.00
47.25
47.50
47.75
48.00
48.25
48.50
48.75
49.00
49.25
49.50
49.75
50.00
8.65mm
8.60mm
8.54mm
8.49mm
8.44mm
8.39mm
8.33mm
8.28mm
8.23mm
8.18mm
8.13mm
8.08mm
8.04mm
7.99mm
7.94mm
7.89mm
7.85mm
7.80mm
7.76mm
7.71mm
7.67mm
7.63mm
7.58mm
7.54mm
7.50mm
7.46mm
7.42mm
7.38mm
7.34mm
7.30mm
7.26mm
7.22mm
7.18mm
7.14mm
7.11mm
7.07mm
7.03mm
6.99mm
6.96mm
6.92mm
6.89mm
6.85mm
6.82mm
6.78mm
6.75mm
Vertex
Conversion Chart
-3.87
-4.00
-4.25
-4.50
-4.75
-5.00
-5.12
-5.37
-5.62
-5.75
-6.00
-6.25
-6.50
-6.62
-6.87
-7.12
-7.25
-7.50
-7.75
-7.87
-8.12
-8.37
-8.50
-8.75
-8.87
-9.37
-9.75
-10.12
-10.50
-10.87
-11.25
-11.62
-12.00
-12.37
-12.75
-13.00
-13.50
-13.75
-14.12
-14.50
-14.75
Spectacle
Power
+
4.00
4.25
4.50
4.75
5.00
5.25
5.50
5.75
6.00
6.25
6.50
6.75
7.00
7.25
7.50
7.75
8.00
8.25
8.50
8.75
9.00
9.25
9.50
9.75
10.00
10.50
11.00
11.50
12.00
12.50
13.00
13.50
14.00
14.50
15.00
15.50
16.00
16.50
17.00
17.50
18.00
4.25
4.50
4.75
5.00
5.25
5.62
5.87
6.12
6.50
6.75
7.00
7.37
7.62
8.00
8.25
8.50
8.87
9.12
9.50
9.75
10.12
10.37
10.75
11.00
11.37
12.00
12.75
13.37
14.00
14.75
15.50
16.12
16.75
17.50
18.25
19.00
19.75
20.50
21.50
22.25
23.00
valleycontax.com | 800.547.8815 | 541.744.9399 fax | [email protected]
Diopters to Radius
Conversion Chart
39.00
39.25
39.50
39.75
40.00
40.25
40.50
40.75
41.00
41.25
41.50
41.75
42.00
42.25
42.50
42.75
43.00
43.25
43.50
43.75
44.00
44.25
44.50
44.75
45.00
45.25
45.50
45.75
46.00
46.25
46.50
46.75
47.00
47.25
47.50
47.75
48.00
48.25
48.50
48.75
49.00
49.25
49.50
49.75
50.00
8.65mm
8.60mm
8.54mm
8.49mm
8.44mm
8.39mm
8.33mm
8.28mm
8.23mm
8.18mm
8.13mm
8.08mm
8.04mm
7.99mm
7.94mm
7.89mm
7.85mm
7.80mm
7.76mm
7.71mm
7.67mm
7.63mm
7.58mm
7.54mm
7.50mm
7.46mm
7.42mm
7.38mm
7.34mm
7.30mm
7.26mm
7.22mm
7.18mm
7.14mm
7.11mm
7.07mm
7.03mm
6.99mm
6.96mm
6.92mm
6.89mm
6.85mm
6.82mm
6.78mm
6.75mm
Vertex
Conversion Chart
-3.87
-4.00
-4.25
-4.50
-4.75
-5.00
-5.12
-5.37
-5.62
-5.75
-6.00
-6.25
-6.50
-6.62
-6.87
-7.12
-7.25
-7.50
-7.75
-7.87
-8.12
-8.37
-8.50
-8.75
-8.87
-9.37
-9.75
-10.12
-10.50
-10.87
-11.25
-11.62
-12.00
-12.37
-12.75
-13.00
-13.50
-13.75
-14.12
-14.50
-14.75
Spectacle
Power
+
4.00
4.25
4.50
4.75
5.00
5.25
5.50
5.75
6.00
6.25
6.50
6.75
7.00
7.25
7.50
7.75
8.00
8.25
8.50
8.75
9.00
9.25
9.50
9.75
10.00
10.50
11.00
11.50
12.00
12.50
13.00
13.50
14.00
14.50
15.00
15.50
16.00
16.50
17.00
17.50
18.00
4.25
4.50
4.75
5.00
5.25
5.62
5.87
6.12
6.50
6.75
7.00
7.37
7.62
8.00
8.25
8.50
8.87
9.12
9.50
9.75
10.12
10.37
10.75
11.00
11.37
12.00
12.75
13.37
14.00
14.75
15.50
16.12
16.75
17.50
18.25
19.00
19.75
20.50
21.50
22.25
23.00
valleycontax.com | 800.547.8815 | 541.744.9399 fax | [email protected]