pone.0202156.g004.tif (1.28 MB)

Grading of vitreous HRF based on fundus and OCT images.

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posted on 2018-08-22, 17:44 authored by Odunayo O. Mugisho, Ilva D. Rupenthal, David M. Squirrell, Sarah J. Bould, Helen V. Danesh-Meyer, Jie Zhang, Colin R. Green, Monica L. Acosta

Grade 0 was characterized by no or very few HRF. Grade 1 showed significantly more HRF in the vitreous (red arrows) seen in OCT images only. Grade 2 and 3 were characterized by clumping of vitreous HRF (red circles) creating a ‘window effect’ that obstructed the view of the underlying retina in both fundus and OCT images. Vitreous HRF were classified as grade 2 if HRF formed clumps obstructing up to 25% of the fundus and OCT image area with grade 3 referring to HRF clumps obstructing more than 25% of the fundus and OCT images.