Evaluation of the Macular and Choroidal Perfusion in Healthy Turkish Population Using Optical Coherence Tomography Angiography
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Purpose: To investigate the effect of age- and sex-related differences on macular and choroidal perfusion in healthy Turkishindividuals by optical coherence tomography angiography (OCTA). Methods: Two hundred-eight eyes of 116 healthy Turkish individuals (60 females and 56 males, mean age 40.35 ± 12.64years) were included in this study. OCTA was performed on a 3 × 3-mm region on the macula. The superficial macula wholeimagevessel density (wiVD), foveal VD and parafoveal VD vessel density, foveal avascular zone (FAZ) as well as choriocapillarisflow index (CFI) were quantified. Results: The mean vessel density was 53.1% ± 2.8% in superficial macula wiVD, 31.7% ± 6.9% in superficial foveal VD and55.2% ± 3.4% in superficial parafoveal VD for 3 × 3-mm OCTA images. Analysis of 3 × 3-mm scan has revealed a mean valueof FAZ area was 0.313 ± 0.112 mm2. The mean CFI for 3 × 3-mm scan was 1.937 ± 0.059. A significant decrease was observedin the mean values of wiVD, parafoveal VD and CFI with age (p < 0.001, p = 0.001, and p < 0.001, respectively), with averageyearly reductions of 0.3%, 0.4% and 0.4%, respectively. However, there was no correlation between age and foveal VD (p >0.05). The FAZ area has shown an age-dependent annual increment, showing an average of 1.26%. The parafoveal VD and FAZarea were significantly higher in females than males (p = 0.027 and p = 0.015, respectively) while other parameters seemedsimilar (p > 0.05 for all). Conclusions: Our results suggest that age- and sex-related variations were effective on macular and choroidal perfusion. These normative values obtained using OCTA may be clinically useful to the evaluation of retinal and choroidal disorders.
Abstract
Purpose: To investigate the effect of age- and sex-related differences on macular and choroidal perfusion in healthy Turkishindividuals by optical coherence tomography angiography (OCTA). Methods: Two hundred-eight eyes of 116 healthy Turkish individuals (60 females and 56 males, mean age 40.35 ± 12.64years) were included in this study. OCTA was performed on a 3 × 3-mm region on the macula. The superficial macula wholeimagevessel density (wiVD), foveal VD and parafoveal VD vessel density, foveal avascular zone (FAZ) as well as choriocapillarisflow index (CFI) were quantified. Results: The mean vessel density was 53.1% ± 2.8% in superficial macula wiVD, 31.7% ± 6.9% in superficial foveal VD and55.2% ± 3.4% in superficial parafoveal VD for 3 × 3-mm OCTA images. Analysis of 3 × 3-mm scan has revealed a mean valueof FAZ area was 0.313 ± 0.112 mm2. The mean CFI for 3 × 3-mm scan was 1.937 ± 0.059. A significant decrease was observedin the mean values of wiVD, parafoveal VD and CFI with age (p < 0.001, p = 0.001, and p < 0.001, respectively), with averageyearly reductions of 0.3%, 0.4% and 0.4%, respectively. However, there was no correlation between age and foveal VD (p >0.05). The FAZ area has shown an age-dependent annual increment, showing an average of 1.26%. The parafoveal VD and FAZarea were significantly higher in females than males (p = 0.027 and p = 0.015, respectively) while other parameters seemedsimilar (p > 0.05 for all). Conclusions: Our results suggest that age- and sex-related variations were effective on macular and choroidal perfusion. These normative values obtained using OCTA may be clinically useful to the evaluation of retinal and choroidal disorders.
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