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. Author manuscript; available in PMC: 2012 Dec 27.
Published in final edited form as: Retina. 2011 Feb;31(2):235–242. doi: 10.1097/IAE.0b013e3181ec80ad

Table 2.

SD-OCT/SLO findings of threshold and sub-threshold.

Grade 0 Grade 1 Grade 2 Grade 3 No RPE disruption RPE disruption
Threshold lesions 1/51 (2%) 3/51 (6%) 5/51 (10%) 42/51 (82%) 29/51 (57%) 22/51 (43%)
Subthreshold lesions 236/333 (71%) 15/333 (4%) 33/333 (10%) 49/333 (15%) 321/333 (96%) 12/333 (4%)
* p < 0.0001 * p < 0.0001

Grade 0: no changes. Grade 1: mild, discrete disruption along the junction of the inner segments/outer segments (IS/OS) of the photoreceptors. Grade 2: clear focal disruption of the IS/OS. Grade 3: clear focal disruption of the IS/OS and abrupt thinning and increased reflectivity of the corresponding outer nuclear layer. RPE: retinal pigment epithelium.

*

Generalized Estimating Equations Analysis, (GEE).