Materials and Methods: Twenty-three eyes of 23 patients with macular edema were included in the study. Thirty three eyes without macular edema were taken as a control group. All patients underwent a complete ophthalmological examination and all maculae were assessed with OCT and HRT. Foveal thickness measurements were taken with OCT and volume above referance plane(VARP) measurements within 1 and 2mm diameter circles were obtained with HRT. Foveal thickness measurements were compared with volume above referance plane measurements.

Results: The mean age of 23 patients with macular edema was 57.08, and 60.9% were female, 39.1% were male. Of the patients with macular edema 43.5% had diabetic retinopathy, 43.5% had retinal vein branch occlusion,13% had central retinal vein occlusion.The mean age of the control group was 47.12, and 57.6% were female, 42.4%were male. There was no significant difference in age and sex between the study group and the control group. For the identification of macular edema, OCT was found to be 100% sensitive, 97% spesific and the predictive value in detecting macular edema was statistically significant.(p< 0.001) In terms of VARP within 1mm circle, HRT was 73% sensitive , 67% spesific and the predictive value in detecting macular edema was statistically significant (p=0.006). In terms of VARP within 2mm circle, predictive value of HRT in detecting macular edema was not statistically significant.

Conclusion: Optical Coherence Tomography and Heidelberg Retinal Tomography can detect macular edema and can make a quantitative assesment. Both OCT and HRT can separate the eyes with macular edema from the eyes without having macular edema but the predictive value of OCT is higher than HRT. Keywords : Macular Edema, Optical Coherence Tomography, Heidelberg Retinal Tomography