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finished bifocal lenses
finished bifocal lenses
Index 1．56
D28／70mm FLAT TOP
D28／70mm BLENDED
D28／70mm， ROUND T0P
|
SPH |
ADD POWER(+) |
|
+1.00 |
+1.25 |
+1.50 |
+1.75 |
+2.00 |
+2.25 |
+2.50 |
+2.75 |
+3.00 |
|
0.00 |
|
|
|
|
|
|
|
|
|
|
+0.25 |
|
|
|
|
|
|
|
|
|
|
+0.50 |
|
|
|
|
|
|
|
|
|
|
+0.75 |
|
|
|
|
|
|
|
|
|
|
+1.00 |
|
|
|
|
|
|
|
|
|
|
+1.25 |
|
|
|
|
|
|
|
|
|
|
+1.50 |
|
|
|
|
|
|
|
|
|
|
+1.75 |
|
|
|
|
|
|
|
|
|
|
+2.00 |
|
|
|
|
|
|
|
|
|
|
+2.25 |
|
|
|
|
|
|
|
|
|
|
+2.50 |
|
|
|
|
|
|
|
|
|
|
+2.75 |
|
|
|
|
|
|
|
|
|
|
+3.00 |
|
|
|
|
|
|
|
|
|
|
-0.25 |
|
|
|
|
|
|
|
|
|
|
-0.50 |
|
|
|
|
|
|
|
|
|
|
-0.75 |
|
|
|
|
|
|
|
|
|
|
-1.00 |
|
|
|
|
|
|
|
|
|
|
-1.25 |
|
|
|
|
|
|
|
|
|
|
-1.50 |
|
|
|
|
|
|
|
|
|
|
-1.75 |
|
|
|
|
|
|
|
|
|
|
-2.00 |
|
|
|
|
|
|
|
|
|
