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August 20, 1932

Undersökningar över främre hornhinneytans form.

JAMA. 1932;99(8):679-680. doi:10.1001/jama.1932.02740600071038

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The purpose of this research is to establish as accurately as possible the curvature of the anterior surface of the cornea and its variations in different states of refraction and in varying sizes and shapes of the eye itself. The work is based on the examination of 130 normal eyes, two cases (four eyes) of microphthalmia, one case (two eyes) of microcornea, and five cases of megalocornea. In conducting the investigation, the principle of measuring the corneal reflexes from mires of known dimensions was followed and two methods were used: one by means of a modified Javal-Schiøtz ophthalmometer and the other by the photographic method of Gullstrand. Both methods are open to minor errors, but the nature of the errors in one case is entirely different from that in the other.

The previous conceptions of the shape of the cornea, as formulated by Gullstrand and others, are that the central

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