Slab-off prisms.
1. There are three grinding techniques for slab-off prism effects: front surface slab-off; bicentric grinding; and reverse slab-off. 2. The front surface slab-off and bicentric produce base-up prism in the lower section of the lens. Reverse slab-off produces base-down prism in the inferior portion of the lens. 3. The slab-off prism process is used to correct vertical diplopia in the reading position. Use of slab-off prism in glasses is expensive and should only be considered for stable deviations.
N R
NR
Garber
T
T
Kirdulis
D004172:Diplopia / Q000191:economics / Q000523:psychology / Q000628:therapy*; D005139:Eyeglasses; D006801:Humans; D055095:Optics and Photonics; D010353:Patient Education as Topic; D011932:Reading