2157 Retinoscopy Rack Set
CT4704-3
Specifications:
0.00D, -0.25D, -0.50D, -0.75D, -1.00D, -1.25D, -1.50D, -1.75D, -2.00D, -2.50D,
-3.00D, -3.50D, -4.00D, -5.00D, -6.00D, -7.00D, -8.00D, -10.0D, -12.0D, -14.0D, -16.0D, -18.0D
+0.25D, +0.50D, +0.75D, +1.00D, +1.25D, +1.50D, +1.75D, +2.00D, +2.25D, +2.50D,
+2.75D, +3.00D, +3.25D, +3.50D, +3.75D, +4.00D, +4.50D, +5.00D, +5.50D, +6.00D, +6.50D,
+7.00D, +8.00D, +9.00D, +10.0D, +11.0D, +12.0D, +13.0D, +14.0D, +16.0D, +18.0D, +20.0D, +22.0D