Meeting Abstract Analysis of Color Consistency in Retinal Fundus Photography: Application of Color Management and Development of an Eye Model Standard

License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Background Color variation in retinal fundus photography represents a significant gap in the standardization of color for fundus cam-eras. Fundus cameras are used in the context of ophthalmol-ogy as a method of documenting a patient’s retina to monitor pathology over time.This form of ophthalmic imaging is also used in clinical trial research and, increasingly, teleophthal-mology, as a stand in for an in-person examination. Given the increased reliance on these images as representations of the appearance of a patient’s eye, it becomes important to identify inconsistencies between devices and provide the most accurate rendering of the retina possible. This research aims to identify these inconsistencies and reconcile them by proposing an eye color model standard. The authors could not identify other attempts to reconcile retinal color at capture, only after the fact image adjustment [1, 2] or application of current color management practices (Figure 1) [3]. Method Themethod for both documenting and reconciling the color inconsistency in fundus cameras included photographing a standardized color target (ColorGauge Nano Target), inside a model eye with a standardized imaging protocol. Fundus cameras operate by projecting a donut of light from the lens through a dilated pupil to illuminate the retina. The model eye was utilized tomimic the imaging conditions of the eye as the other half of the optical system. After capturing on several fundus camera systems, the images were exported as TIFFs and compared to the original color targets. Colorimetric profiles for each camera were generated and applied back to the images to determine how closely the images could be made to match each other