PURPOSE: Our aim was to evaluate the alterations of subfoveal choroidal thickness (SFCT), photoreceptor layer thickness (PRT), and retinal vessel diameter in the dark and light adaptation. METHODS: Twenty-four eyes of 24 healthy volunteers (12 males, 12 females) were included in this cross-sectional and observational study. The SFCT, PRT, retinal arteriole, and venule caliber measurements were performed with spectral domain optical coherence tomography in the dark (0.0 cd/m2) and under light (80 cd/m2) adapted conditions. RESULTS: The mean age of the participants was 30.4 ± 4.4 years (range: 22-42). The SFCT increased statistically significantly in dark adaptation (p < 0.001), then returned to baseline values following light adaptation. The PRT, retinal arteriole, and venule caliber measurements were similar in the dark and light (p > 0.05). CONCLUSIONS: While SFCT increased, PRT, and retinal vessel diameter did not change following transition from light to dark.
PURPOSE: Our aim was to evaluate the alterations of subfoveal choroidal thickness (SFCT), photoreceptor layer thickness (PRT), and retinal vessel diameter in the dark and light adaptation. METHODS: Twenty-four eyes of 24 healthy volunteers (12 males, 12 females) were included in this cross-sectional and observational study. The SFCT, PRT, retinal arteriole, and venule caliber measurements were performed with spectral domain optical coherence tomography in the dark (0.0 cd/m2) and under light (80 cd/m2) adapted conditions. RESULTS: The mean age of the participants was 30.4 ± 4.4 years (range: 22-42). The SFCT increased statistically significantly in dark adaptation (p < 0.001), then returned to baseline values following light adaptation. The PRT, retinal arteriole, and venule caliber measurements were similar in the dark and light (p > 0.05). CONCLUSIONS: While SFCT increased, PRT, and retinal vessel diameter did not change following transition from light to dark.
Authors: Peter L Nesper; Hee Eun Lee; Alaa E Fayed; Gregory W Schwartz; Fei Yu; Amani A Fawzi Journal: Invest Ophthalmol Vis Sci Date: 2019-02-01 Impact factor: 4.799
Authors: Qian Wang; Wen Bin Wei; Ya Xing Wang; Yan Ni Yan; Jing Yan Yang; Wen Jia Zhou; Szy Yann Chan; Liang Xu; Jost B Jonas Journal: BMC Ophthalmol Date: 2020-02-12 Impact factor: 2.209