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Topographer for mapping of corneal surface and method for mapping of corneal surface with refractometer function
Topographer for mapping of corneal surface and method for mapping of corneal surface with refractometer function
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机译:角膜表面测绘的地形仪和具有折射仪功能的角膜表面测绘方法
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摘要
A topographer for mapping the central portion as well as the peripheral portion of the corneal surface is disclosed. The topographer includes a chart image generating part for producing a chart image to fixate the gaze of an eye under test; a measuring light source for projecting concentric ring-shaped measuring lights to the cornea of the eye; a light detector for detecting the image of the measuring light reflected from the cornea; and a vertex measuring optical system. The vertex measuring optical system comprises a vertex measuring light source for radiating a vertex measuring light; a vertex beam splitter for separating the vertex measuring light into two beams; a vertex measuring light projector for projecting one of the two beams to the corneal vertex of the eye, and capable of moving along the surface of the corneal vertex; a collimator for projecting the other beam to a scanning mirror; and a vertex measuring light detector for detecting a light signal produced by superimposing and interfering the two beams reflected from the scanning mirror and the corneal vertex.
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