We appreciate the comments by Drs Khouri, Szirth, and Fechtner and agree that standardization and reporting of parameters that affect visualization of the image are important when making comparisons of the detection of age-related macular degeneration or other retinal disease from film or digital images. They requested specifications for the monitor and how we used it to view images. We used Dell-branded 21-in models (Dell Inc, Round Rock, Tex) and a resolution of 1280 × 1024 with 32-bit color depth. We standardized monitor calibration settings using VeriLUM calibration hardware and software (IMAGE Smiths Inc, Germantown, Md). Our distance from the computer screen was 2 to 3 ft, and the angle was 90°.
Klein R, Meuer SM, Moss SE, Klein BEK, Neider MW, Reinke J. Detecting Age-Related Macular Degeneration: Technologies Are Best Compared When Standardized—Reply. Arch Ophthalmol. 2005;123(8):1157–1158. doi:10.1001/archopht.123.8.1157-b
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