2Prof. Dr., Erciyes Üniversitesi Tıp Fakültesi, Göz Hastalıkları, Kayseri, Türkiye
3Uz. Dr., Kayseri Eğitim ve Araştırma Hastanesi, Göz Hastalıkları, Kayseri, Türkiye
4Uz. Dr., Van Eğitim ve Araştırma Hastanesi, Göz Hastalıkları, Van, Türkiye Purpose: To evaluate diagnostic capacities of Spectralis Spectral Domain optical coherence tomography (OCT), Cirrus OCT and Heidelberg Retinal Tomography III (HRT) and their agreement for common parameters in primary open angle glaucoma.
Materials and Methods: 178 of 100 primary open angle glaucoma patients and 112 eyes of 60 healthy controls underwent testing with HRT III, Spectralis and Cirrus OCT. Average and quadrant retinal nerve fiber layer (RNFL) measurements in all three devices, optic nerve head parameters in HRT and Cirrus were recorded. The area under the curve (AUC) calculations of all parameters were also calculated to assess primary open angle discrimination.
Results: Spectralis OCT average RNFL measurements were higher than Cirrus OCT for both glaucoma and control groups HRT average RNFL measurements were higher than both Spectralis and Cirrus OCT devices for both glaucoma and control groups Cirrus and HRT III didn?t have any agreement except cup volume in both groups and rim are in control group. Cirrus Cup/Disc ratio had the highest and HRT neuro-retinal rim area had the lowest AUC values.
Conclusions: In our study common parameters obtained from different devices had signifi cant differences and none had a perfect AUC value.
Keywords : Primary open angle glaucoma, OCT, HRT III, Heidelberg retinal tomography, agreement