Regular slab off is ground in the eye that has which prescription?

Regular slab off is a technique used in the fabrication of glasses to correct vertical imbalance, particularly when there is a significant difference in the lens power between the two eyes. This situation often arises when one eye requires a stronger prescription than the other, typically when one is more hyperopic (farsighted) than the other, resulting in a condition that can cause issues with alignment and cosmetic appearance.

The correct answer pertains to cases where there is a greater plus prescription in one eye and a lesser minus prescription in the other eye. This situation leads to the need for slab off grinding, typically applied to the lens with the higher plus power, effectively creating the necessary optical balance. This technique helps to create a vertical alignment that allows both eyes to work together effectively without causing visual discomfort.

In this context, when the most plus lens is present in one eye and the least minus lens is in the other, slab off is necessary to correct the resulting imbalance, making the provided choice the best representation of the situation that necessitates regular slab off.