Proof that the prismatic effect is perpendicular to the lens thickness contour.
It is sometimes assumed that the prismatic effect in any astigmatic lens is orthogonal or perpendicular to the iso-thickness curves. This paper offers a formal proof of the validity of the assumption.
Harris
W F
WF
Department of Optometry, Rand Afrikaans University, Johannesburg, South Africa.
Keating
M P
MP
D006801:Humans; D007908:Lens, Crystalline / Q000033:anatomy & histology*; D008433:Mathematics; D008954:Models, Biological; D055095:Optics and Photonics