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      Computed Tomographic Images and Three-Dimensional Expression of Crystalline Lens Findings from Multiple Slices of Scheimpflug Slit Images

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          Although the observation of lens changes in clinical examination has been made through a slit lamp microscope under dilated pupil, precise documentation and analysis of lens changes are presently possible through Scheimpflug photographic images. However, the methodology is still unsatisfactory because the image analysis is two dimensional. In order to overcome this disadvantage, the authors aimed at developing a new methodology for obtaining computed tomographic images of the lens. 60 Scheimpflug slit images of a cataractous human lens were taken by an anterior eye segment analysis system as digital data. After the locations of the whole slit images had been matched, reconstruction of the coronal section line images was performed utilizing extracted image information. The total number of reconstructed coronal section images in additional procedures of the image interpolation was 150. Computed tomography of the lens image was made from those 150 images. A whole lens figure was also demonstrated as a moving three dimensional image.

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          Author and article information

          Ophthalmic Res
          Ophthalmic Research
          S. Karger AG
          11 December 2009
          : 27
          : Suppl 1
          : 94-99
          Department of Ophthalmology, Kanazawa Medical University, Uchinada, Japan
          267851 Ophthalmic Res 1995;27:94–99
          © 1995 S. Karger AG, Basel

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          Page count
          Pages: 6
          Contributions to Non-Invasive Investigation Techniques for the Anterior Eye Segment and the Lens


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