![]() ![]() Fig. 1(a) is a topographic map with equal height lines (or equal depth deformation) where each line represents the geometric locus of points of equal elevation. The main purpose of this publication is to propose a new kind of map where the local curvatures, with its magnitude, its cylinder magnitude and orientation are the most important parameters to be displayed. This is especially important in ophthalmological or optometric studies, like in the ocular wavefront aberrations, in the corneal shape representation and in the characterization of progressive ophthalmic lenses ,, ,,. įrequently, the important parameter to be represented in an optical map is the local curvature and not the surface deformation or elevation. It can be represented in any of three different manners, as described by several authors ,. If we want to polish and figure a primary mirror for a telescope and we wish to evaluate the wavefront deformations in a graphical representation, an elevation map is the most convenient. The topography of an optical surface or wavefront can be represented in many different manners, depending on the kind of optical system and on the desired information. In this article, the effort is oriented to extend the evaluation of the curvature map, using the Euler equation (Eq. (1)) for the local curvature graphical representation. Curvature and level maps of the cornea (responsible for 70% total dioptric power in the eye) are the main tool in diagnosis. Although 3D graphs reveal the entire surface local changes are hidden of the view. Corneal topography representation is used through visual tools such as color maps, 3D graphs, and level maps by specialists to determine many eye pathologies. ![]()
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