Simultaneous evaluation of the lamina cribosa position and choroidal thickness changes following deep sclerectomy

Purpose:To assess the changes in peripapillary and macular choroidal thickness, and in the lamina cribrosa position following deep sclerectomy.Methods:Prospective study, including 39 eyes with open-angle glaucoma following deep sclerectomy. Choroidal thickness was automatically measured using swept-source optical coherence tomography at four peripapillary locations (superior, temporal, inferior, and nasal) and at the macular area in nine fields plotted with Early Treatment Diabetic Retinopathy Study grid. Optic nerve head was evaluated by Spectralis optical coherence tomography with enhanced depth imaging technology. All measurements were performed preoperatively and at 1 week and 2 months after surgery.Results:The mean intraocular pressure significantly decreased 1 week and 2 months after surgery (p < 0.001). A significant peripapillary choroidal thickening was observed at all locations 1 week postoperatively (p ≤ 0.002) and in the temporal quadrant 2 months after surgery (p = 0.027). There was a signifi...