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Patient without glaucoma. Color-coded maps of the retinal nerve fiber layer (RNFL) thickness in the four quadrants before and at 1, 3, 6, and 12 months after the surgery (pictures from the left to the right). One month postoperation, the RNFL thickness increased at the inferior nasal and temporal quadrants because of nerve fiber edema. The increase in the RNFL thickness discontinued in the third month postintervention and decreased at 6 months and 12 months after the surgery.
