Severity of AMD Related to Incidence and Progression in the Fellow Eye

A recently published analysis of data collected from the Beaver Dam Eye Study looked at the severity of age-related macular degeneration (AMD) in one eye in relation to the incidence and progression of AMD in the fellow eye.
The findings showed that severe AMD in one eye was associated with a faster progression rate and an increased incidence in the fellow eye. Patients with less severe AMD in one eye showed less progression in the fellow eye.

The authors estimated that the AMD severity of one eye versus the other was within one step for more than 50% of the participants and within two steps of each other for 90% of the participants.

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Ronald E. Gangnon, PhD; Kristine E. Lee, MS; Barbara E. K. Klein, MD, MPH; Sudha K. Iyengar, PhD; Theru A. Sivakumaran, PhD; Ronald Klein, MD, MPH. Severity of Age-Related Macular Degeneration in 1 Eye and the Incidence and Progression of Age-Related Macular Degeneration in the Fellow Eye. The Beaver Dam Eye Study. JAMA Ophthalmol. 2015; 133(2):125-132. doi:10.1001/jamaophthalmol.2014.4252.