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Medicina is published by MDPI from Volume 54 Issue 1 (2018). Articles in this Issue were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence. Articles are hosted by MDPI on mdpi.com as a courtesy and upon agreement with Lithuanian Medical Association, Lithuanian University of Health Sciences, and Vilnius University.
Open AccessArticle

Correlations Between Digital Planimetry and Optical Coherence Tomography, Confocal Scanning Laser Ophthalmoscopy in Assessment of Optic Disc Parameters

1
Department of Ophthalmology, Neuroscience Institute, Medical Academy, Lithuanian University of Health Sciences, Lithuania
2
Department of Ophthalmology, Medical Academy, Lithuanian University of Health Sciences, Lithuania
3
Biomedical Engineering Institute, Kaunas University of Technology, Lithuania
*
Author to whom correspondence should be addressed.
Medicina 2012, 48(3), 21; https://doi.org/10.3390/medicina48030021
Received: 16 March 2011 / Accepted: 30 March 2012 / Published: 4 April 2012
Objective and Aim. In routine clinical practice, laser methods for the evaluation of optic disc parameters are expensive and not accessible for all ophthalmologists; therefore, there is a need for less expensive technique. The aim of this study was to assess correlations between the parameters of the optic disc measured by digital planimetry (DP), optical coherence tomography (OCT), and confocal scanning laser ophthalmoscopy (CSLO) in healthy and glaucoma patients with the normal biometric parameters of the eye.
Material and Methods
. This case-control study enrolled 40 patients with glaucoma and 32 healthy patients with the normal biometric parameters of the eye. All subjects underwent full ophthalmologic examination, digital color optic disc photography, OCT, and CSLO at the same visit. The optic disc was morphometrically analyzed by DP, OCT, and CSLO. Seven optic disc parameters were evaluated.
Results
. In the glaucoma group, the optic disc and cup areas (r=0.7–0.8, P<0.001) and cup-tooptic disc and rim-to-optic disc area ratios (r=0.7, P<0.001) measured by DP were strongly correlated with those measured by OCT and CSLO, while the horizontal and vertical cup-to-optic disc diameter ratios were found to be moderately correlated (r=0.6–0.7, P<0.001). In healthy patients, the optic disc and cup areas were strongly correlated (r=0.7–8.0, P<0.001). Significant differences in all optic disc parameters, except for the optic disc area, measured by DP, OCT, and CSLO were found between glaucoma and healthy patients.
Conclusions
. Strong correlations between the parameters of the optic disc measured by DP, OCT, and CSLO were found. There were significant differences in the parameters between healthy and glaucoma eyes measured using DP; therefore, this technique may be used for diagnosis, management, and screening of glaucoma.
Keywords: optic disc; digital planimetry; optical coherence tomography; confocal scanning laser ophthalmoscopy optic disc; digital planimetry; optical coherence tomography; confocal scanning laser ophthalmoscopy
MDPI and ACS Style

Buteikienė, D.; Paunksnis, A.; Barzdžiukas, V.; Žaliūnienė, D.; Balčiūnienė, J.V.; Jegelevičius, D. Correlations Between Digital Planimetry and Optical Coherence Tomography, Confocal Scanning Laser Ophthalmoscopy in Assessment of Optic Disc Parameters. Medicina 2012, 48, 21.

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