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IDENTIFYING FEATURES OF EARLY AND LATE AGE-RELATED MACULAR DEGENERATION: A Comparison of Multicolor Versus Traditional Color Fundus Photography

Graham, Katie W., BSc (Hons) Optometry; Chakravarthy, Usha, MD, PhD; Hogg, Ruth E., BSc (Hons), PhD; Muldrew, K. Alyson, BSc, PhD; Young, Ian S., MD, PhD; Kee, Frank, MD, PhD

doi: 10.1097/IAE.0000000000001777
Original Study

Purpose: To compare multicolor (MC) and traditional color fundus photography (CFP) in their ability to detect features of early and late age-related macular degeneration (AMD).

Methods: Study design: Observational case series. Participants: fundus images captured using standard CFP and MC imaging from 33 patients attending hospital clinics and 26 participants from the pilot phase of the Northern Ireland Cohort for the Longitudinal Study of Ageing (NICOLA). Systematic grading of early and late AMD features; (hard drusen, soft drusen, reticular pseudodrusen, pigment clumping, non–geographic atrophy hypopigmentation, atrophy, hemorrhage, and fibrosis) on CFP and MC.

Results: There were 105 eyes with gradable images for comparison. Using CFP as the gold standard, sensitivity values for MC ranged from 100% for atrophy, non–geographic atrophy hypopigmentation, and fibrosis to 69.7% for pigment clumping. Specificity values were high: >80% for all features. On using MC as the comparator, CFP had lower sensitivity for the detection of early AMD features (27.8% for reticular drusen to 77.8% for non–geographic atrophy hypopigmention). Analysis of OCT in discrepant cases showed better agreement with MC for all AMD lesions, except hemorrhage and non–geographic atrophy hypopigmentation. For pigment clumping, CFP and MC were in equal agreement with OCT.

Conclusion: Multicolor retinal imaging allowed for improved detection and definition of AMD features.

Comparison of multicolor and traditional color fundus photography in their ability to detect features of early and late age-related macular degeneration.

Centre for Public Health, Queen's University, Institute of Clinical Science, Belfast, Co. Antrim, Northern Ireland.

Reprint requests: Ruth E. Hogg, BSc (Hons), PhD, Centre for Public Health, Queen's University, Institute of Clinical Science, Block A, Grosvenor Road, Belfast, Co. Antrim, Northern Ireland; e-mail: r.e.hogg@qub.ac.uk

None of the authors has any financial/conflicting interests to disclose.

© 2018 by Ophthalmic Communications Society, Inc.