TY - JOUR T1 - Grading of Iris Color with an Extended Photographic Reference Set JO - Journal of Optometry T2 - AU - Franssen,Luuk AU - Coppens,Joris E. AU - van den Berg,Thomas J.T.P. SN - 18884296 M3 - 10.3921/joptom.2008.36 DO - 10.3921/joptom.2008.36 UR - https://www.journalofoptometry.org/en-grading-iris-color-with-an-articulo-S1888429608700608 AB - PurposeTo present a new iris pigmentation classification system based on comparison of iris pigmentation to a set of 24 standard eye photographs, with the aim of gaining on accuracy and on applicability for retinal straylight studies. MethodsA reference set of 24 eye photographs was established by ranking the photographs from least (number 1) to most (number 24) iris pigmentation. Reproducibility was tested by grading a sample of 67 eye photographs with this reference set. ResultsThe overall variation between observers was 1.46 on a scale of 0 to 25. ConclusionThe new method is promising to be more accurate than existing iris color classification systems in clinical situations where objective colorimetry-based systems are not available. The method may be useful to assess iris translucency and fundus reflectance as sources of variation in retinal straylight. ER -