Korean J Ophthalmol.  2008 Mar;22(1):10-17. 10.3341/kjo.2008.22.1.10.

Relationship between the Retinal Thickness Analyzer and the GDx VCC Scanning Laser Polarimeter, Stratus OCT Optical Coherence Tomograph, and Heidelberg Retina Tomograph II Confocal Scanning Laser Ophthalmoscopy

• Ma KT
• Lee SH
• Hong S
• Park KS
• Kim CY
• Seong GJ
• Hong YJ

• KMID: 1107485
• DOI: http://doi.org/10.3341/kjo.2008.22.1.10

Abstract

PURPOSE: To assess the relationship between the retinal thickness analyzer (RTA) parameters, and those of the GDx VCC scanning laser polarimeter (GDx VCC), Stratus OCT optical coherence tomography (Stratus OCT), and Heidelberg retinal tomograph II confocal scanning laser ophthalmoscopy (HRT II). METHODS: Twenty-nine primary open-angle glaucoma patients were retrospectively included in this study. Measurements were obtained using the RTA, GDx VCC, Stratus OCT, and HRT II. We calculated the correlation coefficients between the parameters of RTA and those of the other studies. RESULTS: Among the optic disc parameters of RTA, the cup volume was best correlated with Stratus OCT (R=0.780, p<0.001) and HRT II (R=0.896, p<0.001). Among the posterior pole retinal thickness parameters, the posterior pole abnormally thin area (PPAT) of the RTA and the inferior average of the GDx VCC were best correlated (R=-0.596, p=0.001). The PPAT of the RTA and the inferior maximum of the Stratus OCT were best correlated (R=-0.489, p=0.006). The perifoveal minimum thickness (PFMT) of the RTA and the cup shape measurement of the HRT II were best correlated (R=-0.565, p=0.004). CONCLUSIONS: Many RTA optic disc parameters were significantly correlated with those of the Stratus OCT and HRT II. The RTA posterior pole retinal thickness parameters were significantly correlated with those of the GDx VCC, Stratus OCT and HRT II. The RTA optic disc and posterior pole retinal thickness parameters may be valuable in the diagnosis of glaucoma.

Keyword

Glaucoma; Optical coherence tomography; Retinal thickness analyzer; Scanning laser polarimeter

MeSH Terms

Adolescent
Adult
Aged
*Diagnostic Techniques, Ophthalmological
Female
Glaucoma, Open-Angle/*diagnosis
Humans
Lasers/diagnostic use
Male
Middle Aged
Ophthalmoscopy
Optic Disk/*pathology
Optic Nerve Diseases/*diagnosis
Retina/*pathology
Retrospective Studies
Tomography, Optical Coherence

Figure

• 

  Fig. 1 This patient has a normal range of the GDx parameters, but low RTA perifoveal minimum thickness. (A) The three-dimensional image map shows a thin retinal area, inferior and nasal to the macula (B) The deviation probability map shows a thin retinal area inferior and nasal to the macula, and the perifoveal thin retinal area (C) Visual field testing shows a decreased sensitivity at the corresponding area of thin retina.

• 

  Fig. 2 This patient has a normal RTA perifoveal thickness and glaucomatous GDx parameters. (A) and (B) A three dimensional map and deviation probability shows normal retinal thickness. (C) Visual field testing shows a superior arcuate scotoma.

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