The Changes in Optic Nerve after Orbital Decompression Surgery for Thyroid Eye Disease and Case Reports of Ischemic Optic Neuropathy

Table 2

Clinical characteristics before and after orbital decompression surgery.

	Non-DON (83 eyes)			DON (16 eyes)
	Preoperative	Postoperative	value	Preoperative	Postoperative	value
Average RNFL (μm)			<0.001			0.003
Rim area (mm^2)			0.170			<0.001
Average cup-to-disc ratio			0.002			0.008
Vertical cup-to disc ratio			0.002			0.110
Cup volume (mm^3)			<0.001			<0.001
RNFL of superior quadrant (μm)			<0.001			0.001
RNFL of temporal quadrant (μm)			0.170			0.018
RNFL of inferior quadrant (μm)			<0.001			0.003
RNFL of nasal quadrant (μm)			0.009			0.100
Mean deviation (dB)			0.160			0.047
Pattern standard deviation (dB)			0.510	5		0.016
Visual field index (%)			0.800			0.058
Hertel exophthalmometry (mm)			<0.001			<0.001
LogMAR visual acuity			0.450			0.053
Intraocular pressure (mmHg)			<0.001			<0.001

DON: dysthyroid optic neuropathy; EOM: extraocular muscle; LogMAR: logarithm of the minimum angle of resolution; TED: thyroid eye disease. Significant values are shown in bold.