Prentice rule

Pren·tice rule

(pren'tis),
each centimeter of decentration of a lens results in 1 prism diopter of deviation of light for each diopter of lens power.

Pren·tice rule

(pren'tis rūl)
Each centimeter of decentration of a lens results in 1 prism diopter of deviation of light for each diopter of lens power.

Prentice,

Charles F., U.S. optician, 1854-1946.
Prentice rule - each centimeter of decentration of a lens results in 1 prism diopter of deviation of light for each diopter of lens power.