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Choroidal thickness measured by SD-OCT before surgery and 1 month after surgery. T1 is the location 0.5 mm temporal to the fovea. T2 is the location 2.5 mm temporal to the fovea. N1 is the location 0.5 mm nasal to the fovea. N2 is the location 2.5 mm nasal to the fovea. S1 is the location 0.5 mm superior to the fovea. S2 is the location 2.5 mm superior to the fovea. I1 is the location 0.5 mm inferior to the fovea. I2 is the location 2.5 mm inferior to the fovea.
