From ULTRA
Eye
Diameter (DIA)
Power (PWR)
Power (PWR) - Left eye
(-) Minus
(+) Plus
-0.25
+0.25
-0.50
+0.50
-0.75
+0.75
-1.00
+1.00
-1.25
+1.25
-1.50
+1.50
-1.75
+1.75
-2.00
+2.00
-2.25
+2.25
-2.50
+2.50
-2.75
+2.75
-3.00
+3.00
-3.25
+3.25
-3.50
+3.50
-3.75
+3.75
-4.00
+4.00
-4.25
+4.25
-4.50
+4.50
-4.75
+4.75
-5.00
+5.00
-5.25
+5.25
-5.50
+5.50
-5.75
+5.75
-6.00
+6.00
-6.50
-
-7.00
-
-7.50
-
-8.00
-
-8.50
-
-9.00
-
-9.50
-
-10.00
-
-10.50
-
-11.00
-
-11.50
-
-12.00
-
Power (PWR) - Right eye
(-) Minus
(+) Plus
-0.25
+0.25
-0.50
+0.50
-0.75
+0.75
-1.00
+1.00
-1.25
+1.25
-1.50
+1.50
-1.75
+1.75
-2.00
+2.00
-2.25
+2.25
-2.50
+2.50
-2.75
+2.75
-3.00
+3.00
-3.25
+3.25
-3.50
+3.50
-3.75
+3.75
-4.00
+4.00
-4.25
+4.25
-4.50
+4.50
-4.75
+4.75
-5.00
+5.00
-5.25
+5.25
-5.50
+5.50
-5.75
+5.75
-6.00
+6.00
-6.50
-
-7.00
-
-7.50
-
-8.00
-
-8.50
-
-9.00
-
-9.50
-
-10.00
-
-10.50
-
-11.00
-
-11.50
-
-12.00
-
Boxes per eye
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