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Mathematical models of the general corneal surface
Author(s) -
Burek Henry,
Douthwaite W. A.
Publication year - 1993
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1111/j.1475-1313.1993.tb00428.x
Subject(s) - ellipse , cornea , corneal topography , surface (topology) , curvature , principal curvature , principal (computer security) , arc (geometry) , keratometer , corneal disease , mathematics , plane (geometry) , geometry , optics , physics , computer science , mean curvature , operating system
Although the curvature of the general cornea's two principal meridians can be acceptably modelled (within limits) by ellipses, this is insufficient to delineate the overall corneal surface. Applying different assumptions in either case, two corneal models arc advanced which interpolate x, y, z points over the whole corneal surface, dependent only on the specifications of the plane curves of the principal meridians.