Correlations between digital planimetry and OCT, HRT for optic disc assessment

Abstract

Purpose. The purpose of the research was to assess relations between biometric parameters of the optic disc (OD) acquired by digital planimetry (DP) and optical coherence tomography (OCT), confocal scanning laser ophthalmoscopy (CSLO) in normal and glaucoma patients groups. Methods: For the case-ciontrol study 40 glaucoma and 32 control patients were chosen. All subjects at the same visit underwent full ophthalmic examination and OD digital colour photographs using CF-60Uvi Canon fundus camera, Stratus OCT optical coherence tomography and Heidelberg Retina Tomograph III confocal scanning laser ophthalmoscopy. OD was morphometrically analyzed by DP soltware (made by Kaunas University of Technology) and proprietary software of OCT and CSLO systems. Seven biometric variables: optic disc, cup and neuroretinal rim areas, cup/disc and neuroretinal rim/disc areas ratios, vertical and horizontal cup/disc diameter ratios were evaluated using three modalities. The Pearson correlation coefficient was used to assess the correlations between the three methods. [...].