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Kook Young Kim, Ji-Sang Han, Seung-Young Yu, Hyung-Woo Kwak; Posterior Pole Retinal Thickness Map in Normal Korean Eyes Measured by Spectral Domain Optical Coherence Tomography. Invest. Ophthalmol. Vis. Sci. 2012;53(14):2682.
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© ARVO (1962-2015); The Authors (2016-present)
To analyze the posterior pole retinal thickness with the new protocol of Spectralis HRA+OCT and to compare two commercially available SD-OCT models in healthy controls.
SD-OCT scans were performed on 178 healthy eyes with Spectralis HRA+OCT and Cirrus HD-OCT. Retinal thickness values was evaluated to assess the relationship between retinal thickness and age, sex, and refractive error/axial length.
The mean age of the subjects was 29.85 ± 0.20 years with a range of 22 to 41 years. The mean ACVA of study participants was 0.96 ± 0.06 (range, 20/30-20/20) and the average refractive error in spherical equivalents (SE) was -3.99 ± 2.83 D (range, -10.75 - +1.00) and the axial length was 25.56 ± 1.63 mm (range, 22.61-29.28). Spectralis HRA+OCT had a new protocol to display the retina thickness over the entire posterior pole for an 8 x 8 grid that evaluate more detailed area than ETDRS analysis of Cirrus HD-OCT.As axial length increased and refractive error decreased, retinal thickness of temporal outer areas were decreased significantly than nasal areas (p<0.05, Pearson's correlation analysis). The foveal thickness was negatively correlated with the refractive error and positively correlated with the axial length (p<0.05, Pearson's correlation analysis).
The measured value of posterior pole macular thickness in normal Korean eyes can be expected to provide more detailed standard value for diagnosing retinal disease.
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