. Author manuscript; available in PMC: 2021 Feb 1.

Published in final edited form as: Ophthalmology. 2019 Aug 29;127(2):167–176. doi: 10.1016/j.ophtha.2019.08.027

Table 2.

Effects of OCT Parameters on ΔRNFL (Observed – Predicted) Stratified by Severity of Glaucoma.

	Change in ΔRNFL Thickness in Microns (Observed – Predicted) for 1 Point Change in SS
Severity of Glaucoma	SS 10 to 3 (95% CI)	SS 3 to 0 (95% CI)
Mild	−0.67 (−0.92 to −0.41) ^*	−16.34 (−18.47 to −14.20) ^*
Moderate	−0.75 (−1.37 to −0.14) ^*	−15.70 (−17.96 to −13.44) ^*
Severe	−1.25 (−1.97 to −0.52) ^*	−16.03 (−18.34 to −13.71) ^*
	Change in ΔRNFL Thickness in Microns (Observed – Predicted) if Artifact is Present (95% CI)
All Severities	−4.76 (−6.35 to −3.17) ^*

Location of Artifact	Change in Quadrant ΔRNFL Thickness in Microns (Observed – Predicted) when Artifact Present in Opposite Quadrant
Superior	−3.64, (−7.41 to 0.115) in inferior ΔRNFL
Inferior	4.04 (−0.61 to 8.6) in superior ΔRNFL

OCT: Optical Coherence Tomography, RNFL: Retinal Nerve Fiber Layer, SS: signal strength, CI: confidence interval,

- significant finding.