Relation entre le coefficient de rigidité et la longueur de l’œil mesurée par échographie ultrasonique

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Abstract
Byultrasonic echeg-raphy it is possible to determine the axial length of the eye, a factor which enables accurate estimation of the volume. A statistical relationship between the length of the eye and its rigidity was revealed; the longer the eye, the less the rigidity. This is particularly evident in anisometropes, the rigidity of the highly myopic eye being less than that of the emmetropic or slightly myopic eye. The rigidity [K] is inversely proportional to the square of the length, according to the fraction: [image] The notion of "''"rigidity" must be replaced by "capacity", which better explains the role played by the volume of the globe in determining its rigidity.