Titre | Can the HRT II be used to rule out glaucoma ? |
Abstract Nr. | P011 |
But | To determine the rate of false negative results with the Heidelberg Retina tomograph (HRT II) in a glaucoma practice. Cross-sectional (Prevalence) study. |
Méthodes | We analysed the HRT's taken between October 2002 and October 2003 in our glaucoma clinic, and selected the patients who had a good quality image (SD < 40µ) with a normal Moorfield's Regression Analysis (MRA). A masked independent observer classified those patients as normal, glaucoma suspect, or glaucomatous on the basis of optic disc stereo photos (ODP) and at least 2 consecutive reliable automated perimetries. The diagnosis of glaucoma was based on a glaucomatous optic disc with a congruent, reproducible visual field defect. |
Résultats | Four hundred and fifty patients who had an HRT examinationwere analysed. One hundred and nine patients had an HRT classid-fied as normal on the MRA and had a good quality image. Fifteen of those 109 patients (13.7%) were classified as glaucomatous on the basis of a abnormal ODP with matching visual field defect. Seven patients were classified as glaucoma suspect. |
Conclusion | The rate of false negative results is too high to use the HRT II alone for glaucoma screening. |
Nom | DEGHISLAGE |
Initiales | CD |
Institut | UZ |
Ville | Leuven |
Nom | Zeyen |
Initiales | TZ |
Institut | UZ |
Ville | Leuven |