gms | German Medical Science

30. Kongress der Deutschsprachigen Gesellschaft für Intraokularlinsen-Implantation, Interventionelle und Refraktive Chirurgie (DGII)

Deutschsprachige Gesellschaft für Intraokularlinsen-Implantation, Interventionelle und Refraktive Chirurgie (DGII)

11.02. - 13.02.2016, Mannheim

Morphometric progression analysis in glaucoma patients: A comparison between the simultaneous non-mydriatic stereoscopic fundus camera (KOWA nonmyd WX3D) and the Heidelberg scanning laser ophthalmoscope (HRT III)

Meeting Abstract

  • Kai Januschowski - Sulzbach/Saar; Tübingen
  • S. Mariacher - Sulzbach/Saar
  • S. Hipp - Stuttgart
  • R. Whirtky - Tübingen
  • G. Blumenstock - Dept. Of Clinical Epidemiology and Applied Biostatistics, Tübingen
  • K.-U. Bartz-Schmidt - Tübingen
  • U. Schiefer - Tübingen; Aalen

Deutschsprachige Gesellschaft für Intraokularlinsen-Implantation, Interventionelle und Refraktive Chirurgie. 30. Kongress der Deutschsprachigen Gesellschaft für Intraokularlinsen-Implantation, Interventionelle und Refraktive Chirurgie (DGII). Mannheim, 11.-13.02.2016. Düsseldorf: German Medical Science GMS Publishing House; 2016. Doc16dgii103

doi: 10.3205/16dgii103, urn:nbn:de:0183-16dgii1032

Veröffentlicht: 1. März 2016

© 2016 Januschowski et al.
Dieser Artikel ist ein Open-Access-Artikel und steht unter den Lizenzbedingungen der Creative Commons Attribution 4.0 License (Namensnennung). Lizenz-Angaben siehe http://creativecommons.org/licenses/by/4.0/.


Gliederung

Text

Purpose: To investigate the agreement between morphometric optic nerve head parameters assessed with the confocal laser ophthalmoscope HRT III (Heidelberg Retina Tomograph, Heidelberg Engineering GmbH, Heidelberg, Germany) and the non-mydriatic, simultaneous stereoscopic fundus camera KOWA WX3D (Kowa Company Ltd, Nagoya, Japan) win glaucoma patients.

Methods: Morphometric optic nerve head parameters of 40 eyes of 40 individuals with primary open angle glaucoma were analyzed retrospectively. HRT III and KOWA nonmyd WX3D assessments were performed. Two groups were formed due to vertical cup-to-disc-ratio (CDR) assessed with HRT III as a type of gold standard. Twenty-four eyes were with a CDR < 0.5 and 16 eyes with a CDR ≥ 0.5. Vertical CDR, disc area, cup volume, rim volume and maximum cup depth were measured. Mean bias and limits of agreement (95% CI) were obtained using scatter plots and Bland-Altman analysis.

Results: Mean overall vertical CDR comparison between HRT III and Kowa nonmyd WX3D measurements showed a mean difference (limits of agreement) of -0.0587 (-0.3604 to 0.2429). For the CDR < 0.5 group mean difference in vertical CDR between HRT III and Kowa nonmyd WX3D was -0.1400 (-0.3352 to 0.0553). For the CDR ≥ 0.5 group mean difference (limits of agreement) between vertical CDR assessed with HRT III and Kowa nonmyd WX3D was 0.0631 (-0.2138 to 0.3401). Kowa nonmyd WX3D showed slightly lower CDR values than HRT III in the CDR < 0.5 group and slightly higher CDR values in CDR ≥ 0.5 group.

Conclusion: This study showed a good agreement between HRT III and Kowa nonmyd WX3D with regard to mean bias and limits of agreement for widely used morphometric optic nerve head parameters like CDR in patients with glaucomatous optic neuropathy.