Lookup NU author(s): James Talks,
Vina Manjunath Manjunath,
Professor Roy Taylor
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
Introduction Wide-field retinal imaging (Optomap), used for detecting diabetic retinopathy (DR), has been shown to compare well with seven-field early treatment diabetic retinopathy study (ETDRS) photographs. An Optomap 200 image covers 80% of the retinal surface, compared with the standard seven-field, 30 images, covering 30% of the retinal surface. In England, DR screening is performed by grading two, 45 images per eye, by the DR screening service (DRSS).Purpose To assess how often retinal new vessels (NVs) are observed on Optomap imaging, outside the DRSS two fields and standard seven-field photography, in a cohort of patients referred by the DRSS.Method A consecutive series of treatment naive patients with DR, referred from DRSS with pre-proliferative or proliferative DR or diabetic maculopathy, were imaged with Optomap colour images, within 3 months of DRSS referral. The incidence and distribution of NVs were recorded in relation to two-field and seven-field areas.Results NVs were found in 102 of 1562 treatment naive eyes (6.5%) of 781 patients. Of these, 72 were referred from DRSS as having NVs, but an additional 30 eyes (29% of NVs detected) from 25 patients were referred with a lesser degree of DR. In 25 of the 30 eyes without NVs reported on referral, NVs were located outside the standard two fields taken at DRSS, and in 12, NVs were outside the area covered on seven-field imaging (11.7% of eyes with NVs).Conclusions Wide-field imaging with Optomap detected approximately 30% more NVs than standard two-field imaging in patients referred from a UK DRSS.
Author(s): Talks SJ, Manjunath V, Steel DHW, Peto T, Taylor R
Publication type: Article
Publication status: Published
Journal: British Journal of Ophthalmology
Print publication date: 01/12/2015
Online publication date: 13/08/2015
Acceptance date: 21/05/2015
ISSN (print): 0007-1161
ISSN (electronic): 1468-2079
Publisher: BMJ Publishing Group
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