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001-es BibID:	BIBFORM038406
Első szerző:	Módis László (szemész szakorvos, kontaktológus)
Cím:	Evaluation of normal corneas using the scanning-slit topography/pachymetry system / Módis L., Langenbucher A., Seitz B.
Dátum:	2004
ISSN:	0277-3740
Megjegyzések:	Purpose: To obtain anterior and posterior corneal shape, curvature, and thickness of normal human corneas. To provide a semiquantitative analysis of normal topography patterns of the anterior and posterior corneal surfaces. Methods: Eighty-eight healthy corneas of 44 normal subjects were analyzed using the scanning-slit topography/pachymetry system. Anterior and posterior elevation and mean power (central and steepest spherical and cylindrical) values and pachymetry data were determined. Right eye values were submitted for primary analysis; however, a comparison between right and left eyes was made in addition to test the possible reliability of the system. Results: There was no significant difference between right and left corneas in 28 evaluated parameters, except for anterior central cylindrical (P = 0.005) and steepest cylindrical (P = 0.017) mean power. The anterior central spherical mean power correlated inversely with the posterior central spherical mean power (r = -0.27, P = 0.04), and the anterior steepest spherical mean power value showed inverse correlation with the mean posterior steepest spherical value (r = -0.44, P = 0.001). The mean central thickness of the cornea was 593.7 ± 54.19 um at the center and was 578 ± 50.53 um at the thinnest point, which was localized in 41% (n = 18) of the cases in the inferotemporal quadrant. An oval-shaped pattern was the most characteristic feature of the anterior and posterior elevation, mean power, and pachymetry maps. Conclusion: Orbscan scanning-slit topography seems to be a reliable technique for the evaluation of normal corneas not only for anterior shape and curvature but also for a real pachymetry gradient recording.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban cornea scanning-slit topography pachymetry
Megjelenés:	Cornea. - 23 : 7 (2004), p. 689-694. -
További szerzők:	Langenbucher, Achim Seitz, Berthold
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat
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