Purpose:

To determine changes in the foveal center choroidal thickness, 500 μm nasal and temporal to the foveal center, measured through EDI-OCT before and 1 week after patients were on hemodyalisis for the first time.

Methods:

a total of 22 eyes from 12 patients were evaluated. Patients with chronic kidney disease treated with hemodialysis for the first time, and without previous eye surgeries or procedures 6 months earlier were included. Choroidal thickness was measured at the foveal center, 500 μm nasal and temporal to the foveal center, through EDI-OCT, before and 1 week after hemodialysis treatment. Also, sociodemographic data, visual acuity, and intraocular pressure were collected. Results were assessed and analyzed using the Mann-Whitney-Wilcoxon U test.

Results:

the average choroidal thickness measured through EDI-OCT before hemodialysis treatment in the foveal center, 500 μm nasal and temporal to the foveal center, was 99.40 ± 30.80 μm, 96.77 ± 26.78 μm, and 94.00 ± 31.03 μm, respectively. One week after hemodialysis the average choroidal thickness was 89.63 ± 18.96 μm (p = 0.055), 83.18 ± 18.00 μm (p < 0.001), and 84.27 ± 27.62 μm (p = 0.002), respectively. Intraocular pressure revealed no changes 1 week after hemodialysis with levels of 13.09 ± 1.87 mmHg, and 12.77 ± 1.79 mmHg (p = 0.379), respectively.

Conclusions:

Choroidal thickness at 500 μm nasal and temporal to the foveal center decrease in patients 1 week after hemodialysis.

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