Study of suspicious subjects of suffering glaucoma evaluated by means of HRT, OCT and GDx‐VCC. Representation by means of Venn's diagram

Abstract

Abstract Purpose To compare the diagnostic coincidence of the confocal laser HRT3, the optical tomography of coherence Stratus OCT 3000 and the laser polarimetry GDx‐VCC, to discriminate against healthy eyes and glaucomatosos in subjects suspicious of suffering glaucoma. Methods There were studied 312 eyes of 312 consecutive patients sent by ophthalmologists from the centers of speciality, for suspicion to be able to suffer glaucoma, (pressure intraocular> 21 mmHg, suspect optic nerve head morphology and / or standard automated perimetry). There were realized to each of them a clinical photographic study of the optic nerve head and of the retinal nerve fiber layer, and, an analysis by means of HRT, OCT and GDx‐VCC. There was valued the classification obtained by each of the analyzers of image and was represented by means of Venn's graphs. Results They found more positive cases in the evaluation of the optic disk that in the study of the retinal nerve fiber layer so much in global like in the intersection of 3 tests, but fundamentally at the cost of the diagnostic criterion GPS of the HRT. The monochromatic photography studio of the retinal nerve fiber layer detects major number of positive cases, followed by OCT and finally by GDx. Conclusion The diagnostic criteria Moorfields Regression Analysis of the HRT3 and of the OCT presents the results nearest to the clinical photographic evaluation; finding a high diagnostic coincidence of the different analyzers of image. Key words: suspect of suffering glaucoma, HRT, OCT, GDx.