slab-off prism
English
[edit]Etymology
[edit](This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)
Noun
[edit]slab-off prism (plural slab-off prisms)
- (optometry) A lens modification used to correct for differences in vision between the two eyes, particularly in cases of anisometropia, in which a prism is ground into the lens of the eye with the stronger prescription, thereby helping to align the visual images seen by both eyes.
- 2023, Clifford W. Brooks, Although Fresnel prism may be used for full-time wear, if successfully worn, it is possible to replace it by ordering slab-off prism with the slab line oriented vertically., page 425:
- Although Fresnel prism may be used for full-time wear, if successfully worn, it is possible to replace it by ordering slab-off prism with the slab line oriented vertically.