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Abstract #46589 Published in IGR 13-3

Evaluation of stereometric parameters of optic disc and nerve fiber layer using HRT III. Report 2: factors influencing reproducibility

Shpak AA; Malakhanova MK; Shormaz IN
Vestnik Oftalmologii 2011; 127: 43-46


29 patients with initial primary open angle glaucoma were examined using Heidelberg retinal tomograph III (HRT III), factors influencing measurements reproducibility and variability were studied. The following factors were found to cause outliers in stereometric parameters of the optic nerve head and retinal nerve fiber layer: standard reference height showing large difference of measurements or very high values, significant difference of scan depth, small optic disc, astigmatism, old age, interobserver variability of disc area (contour line position). Considering these factors one can determine indications for control examination thus improving method accuracy. LA: Russian

A.A. Shpak.


Classification:

6.9.1.1 Confocal Scanning Laser Ophthalmoscopy (Part of: 6 Clinical examination methods > 6.9 Computerized image analysis > 6.9.1 Laser scanning)



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