Apparatus for indicating an asphericity of the cornea of an eye

Details Apparatus for indicating an asphericity of the cornea of an eye Apparatus for indicating an asphericity of the cornea of an eye

A - Human Necessities

61

B

88/13, 88/121.5

A61B 3/10 (2006.01)

Patent

CA 1053493

A B S T R A C T A circular array of twelve light sources transmit light to an eye. A spherical shape of the cornea of the eye is indicated when light reflected therefrom appears to be transmitted from twelve virtual light sources dis- posed along a circular path within the eye. Correspondingly, an aspherical shape of the cornea is indicated when the virtual sources appear to be dis- posed along a circular path within the eye. The array may be disposed within a light reflecting grove which collects ambient light which ? trans- mitted to the eye. A reflection of the collected light appears to be a ring of light which connects the virtual sources.

298072

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