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  • Title: [In vivo measurement of the distribution of the refractive index of the human lens using a Scheimpflug photo of the anterior eye segment and a helium-neon laser beam].
    Author: Roth EH, Kluxen G.
    Journal: Fortschr Ophthalmol; 1990; 87(3):312-6. PubMed ID: 2376384.
    Abstract:
    The distribution of the refractive index of the human lens in vivo is measured by taking a Scheimpflug photograph of the anterior segment while simultaneously passing a HeNe laser beam through these structures. The refractive index can be evaluated simply by using the Snellens formula for refraction on the course of the beam after reevaluating the Scheimpflug photograph for distortion. It is possible to perform this measurement during accommodation and in the relaxed lens.
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